郑州大学研究生专业英语英语参考资料翻译完整版

1.Violence against women is a worldwide scourge, and a massive human rights and public health challenge.

针对妇女的暴力是一个世界性的祸害，以及大规模侵犯人权和公共卫生挑战。

2. Parents should always reassure children that they are safe, and should not exhibit out of control behavior in front of children no matter how old they are.

家长要经常安慰孩子，使他们是安全的，不应该表现出在孩子面前控制行为，不管他们多大年纪。

3. In this case , the stereotyping of city persons is lazy and addicts.

在这种情况下，城市人的成见是懒惰和吸毒者。

4. The idealistic students were attracted to social work because the profession was seen as “on the side of the angels”.

理想主义的学生被吸引到社会工作，因为专业被看作是“关于天使的一面”。

5. Social worker has arrived as a full-fledged, respected profession-one that is vital and indispensable to a modern society. 社会工作者已作为一个成熟的，受人尊敬的职业，对于现代社会是重要的和不可缺少的。

6. The social worker today has many issues to face. I have deliberately chosen not to answer these questions. I am not sure there is a single answer, but maybe there is room for discussion. One thing I am sure is that intolerance does not belong in the helping p rofessional’s repertoire of skills. If one’s personal values are more important than the discussion of choices and informed decision making, one might want to think about whether he or she would want those value respected by others. Social workers are expected to embrace a diversity of values and people. Learning to do this is a process which takes time and a willingness to do so.

社工今天要面对许多问题。我特意选择了不回答这些问题。我不知道有一个统一的答案，但也许有讨论的余地。有一件事我可以肯定的是，不宽容不属于技能帮助专业的剧目。如果一个人的个人价值比的他的选择和明智决策的讨论更为重要，人们可能要考虑他或她是否希望被他人尊重的价值。社工预计拥抱的价值观和人民的多样性。学习做，这是一个过程，需要时间和意愿这样做。

7. Students and fellow social workers, please put down those crying towels and propensities to see the worst in a situation. Yes, there are some carping comments, and indeed we are not perfect. Legitimate criticism should be heard and used to improve professional effectiveness, which then adds to a positive image. Also, how well does our image stack up against other established professionals-such as lawyers, public school teachers, or politicians?

学生和同事的社会工作者，请放下那些哭泣的毛巾和倾向，看看最坏的一种情况。是的，有一些吹毛求疵的意见，而事实上我们是不完美的。正当批评都应该听说过，并用于提高专业效果，然后增加了一个正面的形象。此外，如何以及是否使我们与其他专业人士建立起来，如律师，公立学校教师，还是政治家？

8. As a final point, we conclude that most of the negative and questionable remarks come from conservative politicians and writers who dislike social workers because they dislike a major role for government in society. This philosophical difference is no likely to go away, since most social workers favor a major role for government support of social services. In fact, partisan attacks may increase as the political wars intensify, especially as social workers enter the political fray. We may have to accept the possibility that we will never be loved by everyone and that our positive media image will never register 100%.

作为最后一点，我们认为大部分的负面和质疑的言论来自保守派政治家和作家，那些不喜欢社会工作者的人，因为他们不喜欢政府在社会中的发挥重大作用。这与哲学的区别是没有可能去走，因为大多数社会工作者希望

政府支持社会服务发挥的主要作用。事实上，党派的攻击可能会增加，因为政治战争加剧，尤其是社会工作者进入政治竞争。我们可能不得不承认，我们将永远不会被每个人和我们正面的媒体形象将永远不会注册到100％的爱的可能性。

9. Yet another new effort to save marriages early is the community marriage policy. Religious institutions of all denominations in a community sign an agreement to perform weddings only for couples who undergo training in communication and conflict resolution. The goal is to affect as many couples as possible, since 74 percent of marriages are performed by the clergy. So far 64 cities have instituted a marriage policy.

另一个新的努力是尽早挽救婚姻，这是社会中的婚姻政策。在社区所有教派的宗教机构签署了一项协议，执行婚礼只为那些情侣进行培训，关于沟通和解决冲突方面。我们的目标是影响尽可能多的夫妇有可能，因为74％的婚姻是由神职人员进行。到目前为止，64个城市已经制定了婚姻的政策。

10. In adolescence, children are able to understand the enormity of the event. The mistake that many parents make is thinking that these children are old enough to handle the situation on their own. They are not. They need the support of their parents and their peers. Parents should explain the situation to their children and allow them to reach out to those who have experienced a personal loss. If children at this age group want to reach out and help in relief efforts. Such as giving blood or gathering food and clothing for victims or their families, that is a good use of energy.

在青春期，孩子们都能够理解的事件的严重性。很多家长错误的认为，这些孩子已经足够大来处理他们自己的情况。他们不能。他们需要他们的父母和同龄人的支持。家长应对他们的孩子说明情况，让孩子们接触到那些他们曾经经历了的个人损失。如果在这个年龄段的孩子想伸手对救援工作提供帮助。如提供血液或收集食物和衣服给受害人或其家属，这就是一个

很好的能源利用。

食品专业英语

Lesson 1 Nutrition 1.Food might be defined as any edible substance that provides nourishment when consumed. 食物可定义为食后起滋养作用的任何可食用的物质。 2.We need them for energy, for building and maintaining body tissue; and for regulating body processes the three essential functions of foods in the body. 我们需要这些营养素来提供能量，构成和修补机体组织，调节机体生理过程。这是食物在人体内的三种基本功能。 3.Nutrition might be defined as the process whereby we obtain the essential nutrients and use them to make many other substances our bodies need. 营养可定义为人们赖以获得的必须营养素，并利用这些营养素来制造人体所需的其他物质的过程。 4.The term good nutrition implies that we are obtaining from our food all of the essential nutrients in the amounts needed to keep our bodies functioning and to maintain optimum health. A very simplified definition of good nutrition might be" eating the right foods in the right amounts.”由此可见，唯有营养素才是真正必需的，而正常提供营养素的则是食物。食物是维持生命所必不可少的，因此我们必须懂得各种食物的营养素含量，必须懂得哪些食物是各种各样营养素最丰富的来源，懂得怎样把它们配成有益健康的膳食。营养良好这一术语是指我们处在从食物中获取为保持机体正常活动和维持最佳健康状况所需的全部营养素。营养良好最简明的说法是：“适量食用恰当的食物”。 5.Nutrients might be divided into two genial categories based on the amount that we need. These are the macronutrients (carbohydrates, fats, proteins, and water), which we need in relatively large amounts and the micronutrients) mineral elements and vitamins), which we need in relatively small amounts. 根据人体需要量的不同，营养素可分为量大类：需要量大的称为常量营养素（碳水化合物、脂肪、蛋白质和水）；需要量少的称为微量营养素（矿物质和维生素） 6.Recommended Dietary Allowances 推荐膳食标准,简写“RDA” 7.National Academy of Sciences, National Research Council, And Food and Nutrition Board. 美国科学院全国科学研究委员会食品营养研究会 8.To allow for individual difference, the usually are set with a generous margin of safety. 考虑到个别的种种差异，RDA中通常规定了充裕的安全余量。 9.On the other side of the coin, receiving too much of certain nutrients, amounts significantly above the RDA, can be just harmful as not obtaining enough certain vitamins (such as A and D) and minerals can be highly toxic if high for optimal nutrient intake from the standpoint of both maximum and minimum levels. 另一方面，摄取某些营养素过多（大大超过RDA），也有可能与这些营养素摄取不足一样有害。某些维生素（如VA、VD）和矿物质若大计量的食用超过一段时间会有很大的毒性。因此，可把RDA作为从最高、最低两限量来看都是最佳的营养素摄入量标准来使有。

汽车专业英语翻译综合

第一章汽车总论 1)Today’s average car contains more than 15,000 separate, individual parts that must work together. These parts can be grouped into four major categories: body, engine, chassis and electrical equipment 。P1 现在的车辆一般都由15000多个分散、独立且相互配合的零部件组成。这些零部件主要分为四类：车身、发动机、底盘和电气设备。 2)The engine acts as the power unit. The internal combustion engine is most common: this obtains its power by burning a liquid fuel inside the engine cylinder. There are two types of engine: gasoline (also called a spark-ignition engine) and diesel (also called a compression-ignition engine). Both engines are called heat engines; the burning fuel generates heat which causes the gas inside the cylinder to increase its pressure and supply power to rotate a shaft connected to the power train. P3 发动机作为动力设备，常见的类型是内燃机，其原理是通过发动机缸内的液体燃料燃烧而产生能量。发动机可分为两类：汽油机（点燃式）和柴油机（压燃式），都属于热力发动机。燃料燃烧产生热量使缸内气压上升，产生的能量驱动轴旋转，并传递给动力传动系。 第二章内燃机 1)Power train system: conveys the drive to the wheels 2)Steering system: controls the direction of movement 3)Suspension system: absorbs the road shocks 4)Braking system: slows down the vehicle P4 传动系把发动机输出的扭矩传递给驱动轮。传动系包括离合器（对应机械变速器）或液力变矩器（对应液力自动变速器）、变速器、驱动轴、主减速器、差速器和驱动桥。 5)Drum brakes have a drum attached to the wheel hub, and braking occurs by means of brake shoes expanding against the inside of the drum. With disc brakes, a disc attached to the wheel hub is clenched between two brake pads. P6 鼓式制动器的制动鼓和轮毂连接，制动蹄张开压紧制动鼓内侧从而产生制动。在盘式制动器上，连着轮毂的制动盘被紧紧夹在两个制动块之间。 1)Linking the piston by a connecting rod to a crankshaft causes the gas to rotate the shaft through half a turn.The power stroke"uses up"the gas,so means must be provided to expel the burnt gas and recharge the cylinder with a fresh petrol-air mixture:this control of gas movement is the duty of the valves;An inlet valve allows the mixture to enter at the right time and an exhaust valve lets out the burnt gas after the gas has done its job . P10 活塞通过连杆和曲轴连接，使得气体带动曲轴旋转半圈。作功冲程耗尽了所有的气体，这样就必须采取相应的措施排出废气并且向气缸内充入新的可燃混合气：气体的运动由气门来控制。进气门使可燃混合气在恰当的时刻进入气缸，排气门使燃烧后的废气排出气缸。 2)The spark-ignition engine is an internal-combustion engine with externally supplied in ignition,which converts the energy cntained in the fuel to kinetic energy.The cycle of operations is spread over four piston strokes. To complete the full cycle it takes two revolutions of the crankshaft. P11 火花点火式发动机是由外部提供点火的内燃机，从而将含在燃料内的能量转化成动能。发动机的一个工作循环分布在活塞的四个行程中，一个完整的工作循环曲轴需要转动两圈。 3)The oil pump in the lubricating system draws oil from the oil pan and sends it to all working parts in the engine. The oil drains off and runs down into the pan. Thus,there is constant circulation of oil between the pan and the working parts of the engine. P15

各专业的英文翻译

中国教育在线考研频道提供考研全方面信息指导及咨询服务，为您成功考研提供一切帮助。 哲学Philosophy 马克思主义哲学Philosophy of Marxism 中国哲学Chinese Philosophy 外国哲学Foreign Philosophies 逻辑学Logic 伦理学Ethics 美学Aesthetics 宗教学Science of Religion 科学技术哲学Philosophy of Science and Technology 经济学Economics 理论经济学Theoretical Economics 政治经济学Political Economy 经济思想史History of Economic Thought 经济史History of Economic 西方经济学Western Economics 世界经济World Economics 人口、资源与环境经济学Population, Resources and Environmental Economics 应用经济学Applied Economics 国民经济学National Economics 区域经济学Regional Economics 财政学（含税收学）Public Finance (including Taxation) 金融学（含保险学）Finance (including Insurance) 产业经济学Industrial Economics 国际贸易学International Trade 劳动经济学Labor Economics 统计学Statistics 数量经济学Quantitative Economics 中文学科、专业名称英文学科、专业名称 国防经济学National Defense Economics 法学Law 法学Science of Law 法学理论Jurisprudence 法律史Legal History 宪法学与行政法学Constitutional Law and Administrative Law 刑法学Criminal Jurisprudence

食品专业英语(附翻译)

Effect of frying in different culinary fats on the fatty acid composition of silver carp 油炸不同烹饪脂肪对鲢鱼脂肪酸组 成的影响 姓名: 何毅 学号: 110107904 班级:食工1105班 完成日期: 2013/11/9 DOI: 10.1002/fsn3.40食品科学与营养网页292–297，2013 年7 月

关键字： ?脂肪酸组成； ?煎炸； ?油； ?鲢鱼 摘要 四种不同的油炒的影响(葵花籽油、大豆油、橄榄油、玉米油) 对鲢鱼脂肪酸的组成的 影响进行了评估。油炸后在所有评价样品的水分含量降低的鱼片脂肪含量增加。意思是饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)、多不饱和脂肪酸（PUFA），∑ω3和∑ω6含量的原 料鱼分别是26.1 ± 0.5、52.1 ± 1.1，15.1 ± 0.6，8.9 ± 0.1 和6.1 ± 0.4%。煎炸导致脂肪酸鲢鱼脂质和油炸用的脂肪之间的交换。作为一个相互作用的结果，MUFA，PUFA，∑ω6，和PUFA / SFA的比例样品炒向日葵，大豆和玉米油，显着增加，而大量的SFA下降。煎炸了∑ω3/ω6比消极影响但橄榄油煎样品中的减少是其他样品之间最小。除了在大豆油中长链ω3-多不饱和脂肪酸含量的样品由油炸不受影响。 简介 海鲜是最丰富的ω3来源-长-多不饱和脂肪酸(LC-PUFA)，主要为二十碳五烯酸(EPA，20:5ω3) 和二十二碳六烯酸(DHA，22:6ω3) 链。EPA和DHA的出现在个体发育中起着关键的作用，尤其是神经系统的发育、功能和心血管系统、免疫系统（Lauritzenet al. 2001年）的 运作。ω3和ω6多不饱和脂肪酸（PUFA）被认为是必不可少的，但由于他们不能在人体内 合成，它们必须通过饮食获得(Mahan 和Escott-Stump2005)。 水产养殖是实现发展中国家像伊朗人民的营养目标的手段之一。鲢鱼支持伊朗淡水渔业，是包括派遣内陆水产品总产量的58%左右的最重要物种。鲢鱼(鲢) 广泛应用于复合鱼文化，由于它的快速增长和抗应激、疾病和粗率的搬运。这一物种的消费对人类的营养尤其是在伊朗极为重要。 鱼通常是由伊朗人常见的食用油炸的形式。煎炸，特别深层脂肪油炸在过去的六年期间已成为最受欢迎的食物制备技术。原因是制备甚至对经验丰富更少的厨师是容易的，过程是快速的，和成品是非常美味(Gere 1982)。 复杂化学和物理所发生的变化过程中感官失败、营养价值下降和形成的化合物对健康产生不利影响的热操作结果。

汽车专业英语翻译

About car engine Of all automobile components,an automobile engie is the most complicated assembly with dominant effects on the function of an autombile.So, the engine is generally called the"heat"of an automobile. 在汽车的所有部件中，汽车发动机是最复杂的组件，其对整车性能有着决定性的作用。因而发动机往往被称作发动机的“心脏”。 There are actually various types of engines such as electric motors,stream engines,andinternal combustion engines.The internal combustion engines seem to have almost complete dominance of the automotive field.The internal combustion engine,as its name indicates,burns fuel within the cylinders and converts the expanding force of the combustion into rotary force used to propel the vehicle. 事实上，按动力来源分发动机有很多种，如电动机、蒸汽机、外燃机等。然而内燃机似乎在发动机领域有着绝对的统治地位。就像其字面意思一样，内燃机的染料在气缸内燃烧，通过将燃烧产生气体的膨胀力转换成转动力来驱动发动机前进。 Engine is the power source of the automobile.Power is produced by the linear motion of a piston in a cylinder.However,this linear motion must be changed into rotary motion to turn the wheels of cars or trucks.The puston attached to the top of a connecting rod by a pin,called a piston pin or wrist pin.The bottom of the connecting rod is attached to the crankshaft.The connecting rod transmits the up-and-down motion of the piston to the crankshaft,which changes it into rotary motion.The connecting rod is mounted on the crankshaft with large bearings called rod bearing.Similar bearings, called main bearings,are used to mount the crankshaft in the block. 发动机是整部车的动力来源。能量来自于活塞在气缸内的（往复）直线运动。然而这种（往复）直线运动必须要转换成旋转运动才能驱动车轮。活塞与连杆通过一个销来连接，这个销称为活塞销。连杆的下部连接于曲拐。连杆把活塞的上下往复运动传递给曲拐，从而将往复直线运动转变成旋转运动。连杆和曲拐的连接使用大的轴承，称之为连杆轴承，类似的轴承也用于将曲轴连接到机体，称之为主轴承。 They are generally two different types of cooling system:water-cooling system and air-cooling system.Water-cooling system is more common.The cooling medium, or coolant, in them is either water or some low-freezing liquid, called antifreeze.A water-cooling system consists of the engine water jacket, thermostat, water pump, radiator, radiator cap, fan, fan drive belt and neccessary hoses. 主要有两种类型的冷却系统：水冷和风冷。水冷系统更为普遍。系统所用冷却介质或是冷却液常委水或其他低凝固点液体，称为抗凝剂。一个完整的水冷系统包括机体水套，节温器，水泵，散热器，散热器罩，风扇，风扇驱动皮带和必需的水管。 A water-cooling system means that water is used as a cooling agent to circulate through the engine to absorb the heat and carry it to the radiator for disposal.The ebgine is cooled mainly through heat transfer and heat dissipation.The heat generated by the mixture burned in the engine must be transferred from the iron or aluminum cylinder to the waterin the water jacket.The outside of the water jacket dissipates some of the heat to the air surrounding it, but most of the heat is carried by the cooling water to the radiator for dissipation.When the coolant temperature in the system reaches 90°,the termostat valve open fully, its slanted edge shutting off

专业英语翻译1

专业英语翻译1

Basic Chemistry 1. Atomic Structure Matter has mass and takes up space. Atoms are basic building blocks of matter, and cannot be chemically subdivided by ordinary means. Both the protons and neutrons reside in the nucleus. Protons have a positive (+) charge, neutrons have no charge --they are neutral. Electrons reside in orbitals around the nucleus. They have a negative charge (-). It is the number of protons that determines the atomic number. The number of protons in an element is constant but neutron number may vary, so mass number (protons + neutrons) may vary. 1。原子结构 物质有质量，占空间。原子是物质的基本组成物，不能用普通的方法进行化学细分。 质子和中子都驻留在原子核中。质子有一个正电荷，中子是不带电的，它们是中性的。电子在原子核周围的轨道上。他们有一个负电荷（-）。 它是确定原子序数的质子数。在一个元素中的质子的数量是恒定的，但中子数可能会有所不同，所以质量数（质子+中子）可能会有所不同。 The same element may contain varying numbers of neutrons; these forms of an element are called isotopes. The chemical properties of isotopes are the same, although the physical properties of some isotopes may be different. Some isotopes are radioactive-meaning they "radiate" energy as they decay to a more stable form, perhaps another element half-life: time required for half of the atoms of an element to decay into stable form. Another example is oxygen, with atomic number of 8 can have 8, 9, or 10 neutrons. 相同的元素可能含有不同数量的中子，这些元素

食品专业英语重点句翻译

Lesson 9 1. Lipids are a family of naturally occurring compounds grouped together on the basis of their relative insolubility in water in nonpolar solvents. These are naturally occurring molecules that can be isolated from cells and tissues by extration using nonpolar organic solvents. 依据在水中的不溶解性和在非极性溶剂中的溶解性，脂肪以家族形式组成而自然出现的。这些天然存在的分子可以通过采用非极性有机溶剂萃取的方法，在细胞和组织中分离得到。 2. Saturated fats have a uniform shape that allows them to pack together in a crystal lattice. Unsaturated fats have double bonds that introduce kinks into the hydrocarbon chain making crystal formation more difficult. 饱和脂肪有一个均一一致的形状，这使得他它们能够在晶格中聚合起来。不饱和脂肪有双键能使烃链发生扭曲，从而使晶体的形成更加困难。 3. The most abundant lipid in olive oil is glyceryl trioleate, a trimester formed from glycerol and oleic acid, a chain. mono-unsaturated fatty acid with a cis double bond in the middle of the C 18 橄榄油里最丰富的脂质是三油酸甘油酯，是甘油和油酸，与一个单不饱和脂肪酸加上一个顺式双键在C18链的中间形成的一种三聚体。 4. Waxes are mixtures of esters of long chain carboxylic acids and long chain alcohols. The carboxylic acids usually have an even number of carbon atoms, ranging from 16 to 36, and the long chain alcohols also have an even number of carbon atoms, ranging from 24 to 36. 蜡是一种由长链羧酸和长链醇通过脂键组成的酯的混合物。长链羧酸通常由偶数个（16~36个）C原子组成，而长链醇也是由偶数个（24~36个）C原子组成。 Lesson10 5. This means that any catalyst that catalyze a reaction in one (e.g.,esterification) also catalyze the reverse(e.g., ester hydrolysis) reaction. To say these things another way, catalysts do not change the energy balance between reactants and products; catalysts do lower the energy barrier between reactants and products. 这意味着任何一个催化剂既可以催化一个反应朝一个方向进行，也可以使其朝逆方向进行。换句话说，催化剂不会改变反应物与产品之间的能量平衡，只是降低反应物与产品之间的能量差值。 6.Sulfuric acid as a source of H+ will catalyze the formation of any ester from the appropriate alcohol and carboxylic acid, but many enzymes are so specialized that they will catalyze a reaction of one molecule, but will leave untouched a very similar molecule. 硫酸作为一个H+离子来源，能催化任何由合适的羧酸和醇构成酯的反应，而许多酶的特性很高，它们可以催化一种分子反应，但不会触及另一类很相似的分子的反应。 7. This broader specificity is useful in the case of an enzyme like papain which is important in protein digestion. It can catalyze the hydrolysis of peptide (amide) bonds in a variety of proteins, which means that the body does not need to maintain a stock of more specific enzymes to tackle specific proteins. 这个广泛的特异性在酶中很有用，例如木瓜蛋白酶，它在蛋白质消化中具有重要意义。 木瓜蛋白酶可以在各种蛋白质中催化肽键的水解，从而可使人体不需要更高特异性酶来专门水解特殊的蛋白质。 8. Thus we can describe them in terms of their primary, secondary, tertiary, and in many cases, quaternary structure. They are long chains of amino acid units held together by peptide bonds, looped and folded into secondary and tertiary (and often quaternary) structures by disulfide bonds, hydrophobic interactions, and salt bridges.

汽车专业英语_单词表

unit1 body 车身chassis 底盘enclosure外壳、套hood车棚、车顶sway 摇摆frame车架steering转向、操作brake 制动weld焊接rivet铆钉bolt螺钉washer垫圈vibration 振动stabilizer稳定器ride乘坐舒适性handling操作稳定性linkages转向传动机构plier钳子distributor分电器alternator交流发电机regulator调节器carburetor化油器radiator散热器、水箱defroster除冰装置sludge金属碎屑transmission变速器differential 差速器power train 传动系unitized body 承载式车身suspension system 悬架系统steering system 转向系braking system 制动系shock absorbers减震器control arms控制臂steering wheel 转向盘steering column转向管柱steering gears 转向器tie rod 横拉杆idler arm随动臂brake shoe制动蹄disc brake 盘式制动器drum brakes 鼓式制动器ignition system 点火系统exhaust system 排气系统lubrication system 润滑系oil filters 机油滤清器drive（or propeller）shaft传动轴universal joints 万向节dynamo发电机horn喇叭swived 旋转steering box转向器timing gear 正时齿轮bevel gear 锥齿轮mesh with与啮合leaf spring 钢板弹簧stub axle 转向节 unit2 longitudinal纵向的transverse横向的reciprocate往复spin旋转piston活塞ignite点火rub摩擦quart夸脱reservoir油箱mechanical机械的enclosed被附上的gallon加仑stroke冲程camshaft凸轮轴combustion燃烧disengaged脱离啮合的flywheel飞轮internal-combustion engine内燃机diesel-fuel柴油LPG=Liquefied Petroleum Gas液化石油气体CNG=Compressed natural gas压缩天然气spark ignition火花点火compression ignition压缩点火spark plug火花塞gas-turbine engine蒸汽机Stirling engine斯特灵发动机lubricating system润滑系统oil pan油底壳oil pump机油泵exhaust system排气系统emission-control system排放控制系统energy conversion能量转换air/fuel ratio空燃比connecting rod连杆TDC=Top Dead Center上止点BDC=Bottom Dead Center 下止点intake stroke进气冲程compression stroke压缩冲程power stroke作功冲程exhaust stroke排气冲程compression ratio压缩比lifter挺柱rocker摇臂retainer弹簧座seal密封件tappet 推杆lobe凸起gasket垫圈valve train配气机构cam follower气门挺柱rocker arm摇臂combustion chamber燃烧室intake valve进气阀exhaust valve排气阀valve stem气门杆valve cover气门室盖valve port阀口valve guide气门导管 unit3

汽车专业英语课文翻译4

Fuel Supply System of Gasoline Engine(UNIT SEVEN) All the gasoline engines have substantially identical fuel systems and run on a mixture consisting of fuel vapor and air. The fuel system comprises the units designed to store, clear and deliver fuel, the units intended to clean air and a unit for preparing a mixture from fuel vapor and air. In a fuel system different components are used to supply fuel from the fuel tank into the engine cylinder. Some of the important components are fuel tank, fuel pump, fuel filter, carburetor, intake manifold and fuellines or tubes connecting the tank, pump and the carburetor. The fuel tank is a fuel container used for storing fuel. It is made of sheet metal. It is attached to the vehicle frame with metal traps and is located at the rear of the vehicle. They are mounted in a boot or boot-floor pan in case of front-engined cars and small commercial vehicles. In order to strengthen the tank as well as to prevent surging of fuel when the vehicle rounds a curve of suddenly stops, baffle plates are attached to the inside of the tank. A cap is used to close the filler opening of the tank. The fuel line is attached at or near the bottom of the tank with a filtering element placed at the connection. The other components of the fuel tank are the fuel gauge sending unit, a vent pipe, receiving unit. To prevent the dirt and water from entering the luggage compartment, a sealing strip is fitted between the fuel tank and boot floor pan. Moreover to limit the transmission of frame distortion to the tank giving rise to squeaking as the metal parts get rubbed together, rubber or felt pads are often fitted between the mountings and the tank. Provision is also made against drumming of the tank by these mountings. The tank may be placed at the side of the chassis frame for convenience in case of large commercial vehicles. The length of the connecting lines or tubes from the tank to the carburetor is also restricted by this at the same time. A porous filter is attached to the outlet lines. By drawing fuel from the tank through the filter, any water in the bottom of the tank as well as any dirt into the fuel gathers on the surface of the filter. To keep the fuel always under atmospheric pressure, the filter pipe or tank is vented. In order to prevent dirt in the fuel from entering the fuel pump or carburetor, fuel filters and screens are used in the fuel system. If the dirt is not removed from the fuel, the normal operation of these units will be prevented. The engine performance will also be reduced.

汽车专业英语翻译

INTERNAL COMBUSTION ENGINE 引擎燃烧室 1. principle of operation 原理 Engine and power : Engine is used to produce power. The chemical energy in fuel is converted to heat by the burning of the fuel at a controlled rate. This process is called combustion. If engine combustion occurs with the power chamber. ,the engine is called internal combustion engine. If combustion takes place outside the cylinder, the engine is called an external combustion engine. Engine used in automobiles are internal combustion heat engines. Heat energy released in the combustion chamber raises the temperature of the combustion gases with the chamber. The increase in gas temperature causes the pressure of the gases to increase. The pressure developed within the combustion chamber is applied to the head of a piston to produce a usable mechanical force, which is then converted into useful mechanical power. 译: 引擎和能量: 引擎为汽车提供能量，燃料的化学能通过燃烧，转化为热能，这个过程叫燃烧。假如燃烧在燃烧室，这样的发动机叫内燃机。假如燃烧在气缸外，这样的发动机叫外燃机。 用在汽车上的一般是内燃机，热能在燃烧室释放，燃烧室气体温度升高。气体温度的升高使气体的压力曾加，燃烧室内的高压气体作用在活塞头部产生可以利用的化学能，化学能转化为机械能。 Engine T erms : Linking the piston by a connecting rod to a crankshaft causes the gas to rotate the shaft through half a turn. The power stroke “uses up” the gas , so means must be provided to expel the burnt gas and recharge the cylinder with a fresh petrol-air mixture :this control of gas movement is the duty of the valves ;an inlet valve allows the new mixture to enter at the right time and an exhaust valve lets out the burnt gas after the gas has done its job. Engine terms are : TDC(Top Dead Center):the position of the crank and piston when the piston is farther away from the crankshaft. BDC(Bottom Dead Center):the position of the crank and piston when the piston is nearest to the crankshaft. Stroke : the distance between BDC and TDC; stroke is controlled by the crankshaft. Bore : the internal diameter of the cylinder. Swept volume : the volume between TDC and BDC Engine capacity : this is the swept volume of all the cylinder e.g. a four-stroke having a capacity of two liters(2000cm) has a cylinder swept volume of 50cm. Clearance volume: the volume of the space above the piston when it is at TDC. Compression ratio = (swept vol + clearance vol)\(clearance vol) Two-stroke : a power stroke every revolution of the crank.