机械类专业英语作文
My View about Mechanism
It is well known that the function of mechanism is to transmit or transform motion from one rigid body to another as part of the action of a machine.Gear system,cam system and plane and spatial linkages,which are considered as three types of common mechanical devices that can be used as basic elements of a mechanism.
A kinematics chain is a system of links,which are either jointed together or are in contact with one another in a manner that permits them to move relative to one another.A mechanism or linkage is a constrained kinematics chain,and is a mechanical device that has the purpose of transferring motion and/or force from a source to an output.
Mechanisms are used in a great variety of machines and devices.The simplest closed-loop linkage is the four-bar linkage,which has three moving links and four pin joints.The four-bar linkage has some special configurations created by making one or more links infinite in length,such as the slider-crank mechanism and its inversions.The first step in the motion analysis of more complicated mechanisms is to sketch the equivalent kinematics or skeleton diagram. The number of degree of freedom of the mechanism.The process of mechanisms are the first steps in both the kinematics analysis process.
The ability to visualize relative motion and the ability to improve on a particular design are marks of a successful kinematician.So we must
cultivate our ability of this in our daily life.Only in this way can we become a successful kinematician.
Introduction to Manufacture Because of the highly competitive nature of most manufacturing business,the question of finding ways to reduce cost is ever present. Low-cost manufacture dose not just happen.There is a close and interdependent relationship between the design of a product,selection of materials. Selection of process and equipment,and tooling selection and design.
A good starting point for cost reduction is in the design of the product.The design engineer should always keep in mind the possible alternatives available to him in making his design.The important way to reduce the cost in design is employing maximum acceptable tolerances and finishes. Specify surface roughness and accuracy no greater than that which is commensurate with the type of part or mechanism being designed and the production method or methods contemplated.A comprehensive study of the principle of interchangeability is essential for a thorough understanding and full appreciation of low-cost production techniques.
Many engineers have as their function the designing of products that are to be brought into reality through the processing or fabrication of materials. In this capacity they are a key faction in the material selection
manufacturing procedure. Manufacturing engineers select and coordinate specify process and equipment to be used,or supervise and manage their use. These engineers must have a broad knowledge of machine and process capacities and of materials.The materials engineers devote their major efforts toward developing new and better materials.
With the advert of computers and machines that can be controlled by computers,we are entering a new era of production planning.So there is no doubt that this trend will continue at ever-accelerating rates as computers become cheaper and smarter.
人工智能对生活的影响英语作文
人工智能对生活的影响英语作文 Nowadays, artificial intelligence, which is becoming more and more familiar with us with the development of science a nd technology, is infiltrating into our daily life gradually, and it brings great convenience and progress to our societ y. Although we don't have a great knowledge about the speci fic content of artificial intelligence, we enjoy the convenie nce and benefit that artificial intelligence brings to us. Artificial intelligence can be scripted as a new science and technology, which is used to simulate human intelligenc e. Namely, computers simulate the way of human's thinking an d intelligent behavior, such as Learning, Reasoning, Thinking, Planning, and so on. We can't deny the fact that artifici al intelligence is of great application nowadays. For example , a lot ofintelligent computer or household appliances come into our life, intelligent robots help us to finish some di fficult work that we can't do by ourselves, and intelligent control has improved our working greatly. We can say that artificial intelligence exists everywhere. As one of the three most cutting-edge technologies in tw enty-first Century, artificial intelligence has a very bright prospect. However, The biggest obstacle of it is that it is a subject, which is related to computer science. Psycholo gy. Philosophy and other knowledge. Therefore, what we should do is to study hard, widen our knowledge, and consolidate our professional knowledge. Only by this way can we do co ntribution to the development of artificial intelligence and
人工智能AI的影响 英语作文
For personal use only in study and research; not for commercial use The Impact of AI on Our Life In recent years, AI(artificial intelligence) is ubiquitous, maybe you didn't notice it at all, but recently, Google's AlphaGo defeated Lee Sedol, the World Go Champion.?It must cause your attention, meanwhile, the machine's sweeping victories have once again made AI a hot topic.?The impact of artificial intelligence on our life is mainly reflected in following aspects. First, the impact of AI on natural science.?In many subjects which need computers, AI has an important position, conversely, AI is helpful to the formation of our own intelligence. Second, the impact of AI on economy.?AI into various fields to generate huge benefit, but it also causes the question of employment.?As AI replaced the human in many ways, it leads to a huge change in a social framework. The last one is the impact of AI on society, AI provided a new model to our life, because many developers use AI to develop more interesting games, it makes our life colorful. AI is a double-edged sword, because some people expect AI to benefit mankind in more fields, and some others fear that AI will eventually get out of control.?But in my view, if we can use it very well, it will bring more conveniences to our life, not to lose control.?Not only so but also can develop technology.
专业英语作文 化学
Degradable Plastic Bags The plastic material, is a high molecular weight organic matter as main component. Over the past few years plastics inspire countless innovations that help make life better, healthier and safer every day. For example, plastic bags help keep the foods we eat and serve our families safer and fresher than ever before. But it cause the white pollution. So June 1, 2008 started the implementation of the "plastic limit order" .To protect our environment, we should use more environmental plastic bags. The production of plastic bags added in the process of degradation masterbatch plastic bags that degradable plastic bags, degradable plastic bags for 90 days can automatically decompose in accord with certain conditions. To the plastic film bag as raw material for the production of plastic bags, we used plastic bags: the bag bag, shopping bags, handbags, handbags, bags, vest belt and industrial. Some domestic "manufacturers of degradable plastic" method is mainly used in PVC, by adding a certain proportion of starch biodegradable agents, thus changing the hydrocarbon structure of PVC, by microorganisms and decomposition. Another approach is the incorporation of photosensitizer, in plastics, in the sunshine
AI人工智能英语作文
Recently, Google’s AlphaGo have become the most famous artificial intelligence since it defeated Lee Sedol, the World Go Champion, 4 to 1 in a five-game match. Lee ,a world champion,cannot win a "robot",it seems like impossible,but in fact,facts speak louder than words. The machine’s sweeping victories have once again made AI a hot topic. Some people welcome the progress and the artificial intelligence is expected to benefit mankind in more fields;other people worry that artificial intelligence will eventually get out of control. Indeed, artificial intelligence can benefit mankind in many fields,such as treatment of diseases, industrial production and large data calculation.As for Google’s AlphaGo,it has achieved great progress and this progress could be revolutionary. At the same time,some people think we should not be carried away by convenience,we cannot ignore the risk of artificial intelligence.But actually,most of people come into contact with artificial intelligence in science fiction.Their panic root in survival contradiction of artificial intelligence and human in the movies or novels. There is no denying that their concerns is reasonable.But in my point of view,it is not a computer beats the human, but human defeated the human. First of all,the development of artificial intelligence will lead to unemployment in a large fields.This is the most direct consequences.Artificial intelligence can work more efficiently,and nobody
英语作文人工智能对人类生活的影响新
Nowadays,?artificial?intelligence,?which?is?becoming?more?and?more?familiar? with?us?with?the?development?of?science?and?technology,?is?infiltrating?into?o ur?daily?life?gradually,?and?it?brings?great?convenience?and?progress?to?our?so ciety.?Although?we?don't?have?a?great?knowledge?about?the?specific?content?of ?artificial?intelligence,?we?enjoy?the?convenience?and?benefit?that?artificial?inte lligence?brings?to?us.?We?can?say?that?artificial?intelligence?is?changing?the?w a y?o f?o u r?l i v i n g,?l e a r n i n g,?w o r k i n g?a n d?s o?o n.?? Artificial?intelligence?can?be?scripted?as?a?new?science?and?technology,?which ?is?used?to?simulate?human?intelligence.?Namely,?computers?simulate?the?way ?of?human's?thinking?and?intelligent?behavior,?such?as?Learning,?Reasoning,?T hinking,?Planning,?and?so?on.?We?can't?deny?the?fact?that?artificial?intelligence ?is?of?great?application?nowadays.?For?example,?a?lot?ofintelligent?computer?o r?household?appliances?come?into?our?life,?intelligent?robots?help?us?to?finish? some?difficult?work?that?we?can't?do?by?ourselves,?and?intelligent?control?has? improved?our?working?greatly.?We?can?say?that?artificial?intelligence?exists?ev erywhere.?? As?one?of?the?three?most?cutting-edge?technologies?in?twenty-first?Century,?art ificial?intelligence?has?a?very?bright?prospect.?However,?The?biggest?obstacle? of?it?is?that?it?is?a?subject,?which?is?related?to?computer?science.?Psychology.?
AI人工智能英语作文
Present a written argument or case to an educated reader with no specialist knowledge of the following topic. In 2016, Google’s AlphaGo defeated Lee Sedol, the World Go Champion, 4 to 1 in a five-game match. The machine’s sweeping victories have once again made AI（artificial intelligence）a hot topic. Some people fear that AI will eventually get out of control. To what extent do you agree or disagree with the opinion？Give reasons for your answer and include any relevant examples from your own knowledge or experience. A lphaGo’s great triumph over Lee Sedol once again draw s persons’ attention to artificial intelligence. And some people assert that AI will pose a threat to human existence if human lose control of it. In my opinion, it will be a long time before artificial intelligence has consciousness itself, not to mention defying human. But in the more distant future, we have reasons to believe that AI will have no distinction from human and disobey human’s orders. Artificial intelligence, in essence, is simulation of human ways of thinking. And its development deals with interdisciplinary of computer
化学专业-英语单词
化学专业-英语单词
Chemistry Summer Holidays Homework for Future Freshmen of High school Class: __________________________ Chinese Name:______________________ English Name:______________________
Beijing#80 High School International Department
Introduction to Chemistry 化学入门 Definition: Chemistry is the study of the composition, structure, and properties of matter, the processes that matter undergoes, and the energy changes that accompany there processes. (化学的定义：化学是研究物质的组成，结构，性质，物质发生的变化，以及变化过程中涉及的能量变化。) Branches of Chemistry: Organic Chemistry；Inorganic Chemistry；Physical Chemistry; Analytical Chemistry; Biochemistry; Theoretical chemistry (化学的分支：有机化学；无机化学；物理化学；分析化学；生物化学；理论化学)
Day 1 【Task】Please put the Chinese name into the suitable chapter. Vocabulary about chapter name. 章节名称词汇 （----What may we study about chemistry in the first year? 高一可能涉及哪些化学知识？） 物质和变化；原子：构建物质的基本单元；酸和碱；氧化还原反应；气体； 化学键；原子中的电子排布；称量和计算；有机化学；反应能量；元素周期律；化学方程式和化学反应；化学平衡；化学反应动力学；化学计量学； 化学式和化学物质；物质的状态；生物化学；电化学；滴定与pH值； 水溶液中离子和稀溶液的依数性；溶液； Chapter 1 Matter and Change ( ) Chapter 2 Measurement and Calculation ( ) Chapter 3 Atom-Building Block of Matter ( ) Chapter 4 Arrangement of Electrons in Atoms( ) Chapter 5 The periodic Law ( ) Chapter 6 Chemical Bonding ( ) Chapter 7 Chemical Formulas and Chemical Compounds ( ) Chapter 8 Chemical Equations and Reactions ( ) Chapter 9 Stoichiometry ( ) Chapter 10 States of Matter ( ) Chapter 11 Gas ( ) Chapter 12 Solution ( ) Chapter 13 ions in Aqueous Solution and colligative Properties ( ) Chapter 14 Acid and Base ( ) Chapter 15 Acid-Base Titration and pH ( ) Chapter 16 Reaction Energy ( ) Chapter 17 Reaction Kinetics ( ) Chapter 18 Chemical Equilibrium ( ) Chapter 19 Oxidation-Reduction Reactions ( ) Chapter 20 Electrochemistry ( ) Chapter 22 Organic Chemistry ( ) Chapter 23 Biology Chemistry ( )
英语作文人工智能对人类生活的影响
Nowadays, artificial intelligence, which is becoming more and more fami liar with us with the development of science and technology, is infiltratin g into our daily life gradually, and it brings great convenience and progres s to our society. Although we don't have a great knowledge about the spec ific content of artificial intelligence, we enjoy the convenience and benefi t that artificial intelligence brings to us. We can say that artificial intellige nce is changing the way of our living, learning, working and so on. Artificial intelligence can be scripted as a new science and technology, w hich is used to simulate human intelligence. Namely, computers simulate the way of human's thinking and intelligent behavior, such as Learning, R easoning, Thinking, Planning, and so on. We can't deny the fact that artifi cial intelligence is of great application nowadays. For example, a lot ofint elligent computer or household appliances come into our life, intelligent r obots help us to finish some difficult work that we can't do by ourselves, and intelligent control has improved our working greatly. We can say that artificial intelligence exists everywhere. As one of the three most cutting-edge technologies in twenty-first Centur y, artificial intelligence has a very bright prospect. However, The biggest obstacle of it is that it is a subject, which is related to computer science. P
人工智能对生活的帮助英文
人工智能对生活的帮助英文 人工智能的出现到底对人类生活有多大的帮助呢?下面是为你整理的人工智能对生活的帮助英文，供大家阅览! Nowadays, artificial intelligence, which is becoming more and more familiar with us with the development of science and technology, is infiltrating into our daily life gradually, and it brings great convenience and progress to our society. Although we don't have a great knowledge about the specific content of artificial intelligence, we enjoy the convenience and benefit that artificial intelligence brings to us. We can say that artificial intelligence is changing the way of our living, learning, working and so on. Artificial intelligence can be scripted as a new science and technology, which is used to simulate human intelligence. Namely, computers simulate the way of human's thinking and intelligent behavior, such as Learning, Reasoning, Thinking, Planning, and so on. We can't deny the fact that artificial intelligence is of great application nowadays. For example, a lot ofintelligent computer or household appliances come into our life, intelligent robots help us to finish some
英语作文-人工智能
As a branch of computer science, artificial intelligence has gradually entered our life with the progress of science and technology, and has become the hottest topic at present. Just like AlphaGo, as the first artificial intelligence program to defeat the world champion of weiqi, it has caused unprecedented discussion. Just as a famous saying, "every coin has two sides", artificial intelligence is no exception. One view is that advanced technology can liberate humans, for example, some robots can replace people to do dangerous jobs and ensure people's safety. Another view is that this has led to unemployment to some extent. At the same time, they worry that some criminals use artificial intelligence crime. Or wait until artificial intelligence is highly mature and even replace humans. The above two views are reasonable, but not comprehensive. Human superiority is the subjective initiative, the expectation and imagination of the future, rather than the cognitive and learning ability. Artificial intelligence may be better in some way than human beings, but it can't completely replace it. I think we should respect artificial intelligence, and better promote the rapid development of society. 人工智能作为计算机科学的一个分支，随着科学技术的进步而逐渐进入我们的生活，并成为当前最热门的话题。就像alphago，作为第一个人工智能程序战胜围棋世界冠军，这引起了前所未有的讨论。 正如一句名言所说，“每一枚硬币都有两面”，人工智能也不例外。一种观点认为先进技术可以解放人类，例如，一些机器人可以代替人们做危险的工作，确保人们的安全。另一种观点认为，这在某种程度上导致了失业。同时，他们担心一些罪犯使用人工智能犯罪。或者等到人工智能高度成熟，甚至取代人类。 以上两种观点是合理的，但不是全面的。人的优越性是人对未来的主观能动性、对未来的期待和想象，而不是认知和学习能力。人工智能在某些方面可能比人类更好，但它不能完全取代人工智能。我认为我们应该尊重人工智能，更好地促进社会的快速发展。 1 / 1
AI 人工智能 artificial intelligence 英语作文
How Will AI Affect Our Life? After AlphaGo won the game, a variety of conspiracies in vogue: 70% manufacturing workers will be laid off; 90% doctors, programmers and editors who become unemployed; the examination of CET-6 become meaningless, learning a foreign language is useless, movable simultaneous interpretation will be better. Conspiracy theories in vogue, because it can meet some of psychological needs of human being, a certain kind of alert. But man's charm, is always on the make up imaginary enemies from my mobilization, reminding us. These robots don't have free will, imagination and experience and they also execute logic programs for the time being. "Imagination is more important than knowledge", Einstein said. Robots cannot invent laws of energy conversion, even when an Apple fell on the head, it will not develop the law of universal gravitation? The other is experience (know-how), those tips that cannot be patented. When I visited the Porsche factory, the most surprising is the workshop of master craftsman and their know-how is the precious resource of this luxury brands. Imagination and experience are the last treasure of human being. Buffett says: "as long as I know where I die, I will not go to that place. "This backward thinking tells you, as long as it is a mission by simple physical labor or calculation procedure, you don't need to worry about that.
2020高考英语作文预测--5G+人工智能
2020高考英语作文预测热点+范文——5G和人工智能 01 5G技术与人工智能 假定你是李华，你所在的山西国际学校要征集一封英文感谢信，以致意奋战在抗击新型冠状病毒肺炎第一线的医护人员，请你根据下列要点写一封信用于投稿。 【题目要求】 人工智能与5G时代已悄然来临，随着科技越来越与人类生活相结合，随处可见的人工智能，让生活越来越便利的同时也带来许多的困惑，按要求完成一篇作文。内容包括： 1. 描述或畅想未来人工智能的发展状况 2. 分析这种现象产生的原因 3. 陈述利弊以及表明个人态度 【优秀范文】 As we all know , the time of 5G technology is coming , it is called the fourth industrial revolution , future of computer science lies in the artificial intelligence，it is the research and artificial simulation of human thought and eventually be able to ma ke a human like to think the same machine , for human services and to help people solve problems. After all, people thought it was unique, there are feelings, there are a variety of character, this will be very difficult to achieve in the machine.In fact, to do the same as the human thinking machine, the only one of the artificial intelligence, is by no means all. Through the study of artificial intelligence, it can resolve all kinds of scientific problems, promote the development of other science will have a great impact on all people's lives .
人工智能怎样影响人类的英语作文.doc
人工智能怎样影响人类的英语作文 人工智能怎样影响人类的英语作文篇1 The progress of artificial intelligence. Speed is amazing, the future we will start to work side-by-side with artificial intelligence. AlphaGo fire, five one hundred million people watching man-machine war , in the end it depends on the technical advantage of big data and deep learning in a 4-1 winners posture tell people, to artificial intelligence is no longer just the scene in the movie, but in the real world there is another round of industrial revolution, however, this changes make many people feel scared, at that time all kinds of artificial intelligence threats to the human voice, according to the British science association entrusted network research firm YouGov, according to a survey of about 36% of people think that the rise of artificial intelligence technology will pose a threat to human long-term survival. People in all kinds of artificial intelligence can bring big Bob unemployment is deeply concerned about the discourse, but also in such a tough AlphaGo will be malicious use worrying on such issues. 人工智能.的进步速度是惊人的，未来我们将开始与人工智能并肩工作。 AlphaGo火了，五场亿人围观的人机大战，最终它依托大数据与深度学习的技术优势以4：1的胜利者姿态告诉人们，人工智能真的来了，不再只是电影中的场景，而是现实世界里正在上演的又一轮产业变革，然而这种变革让不少人感到惶恐，一时间各种人工智能威胁人类的声音铺天盖地，据英国科学协会委托网络调研公司YouGov进行的一项调查显示，大约36%的人认为人工智能技术的兴起会对人类长期生存构成威胁。人们在各种人工智能会带来大波失业潮的言论中深感忧虑，同时也在如此强悍的AlphaGo会不会被恶意利用等问题上担心不已。 人工智能怎样影响人类的英语作文篇2 人工智能
人工智能的利弊英语作文
Not long ago,it's a hot topic that the world champion Go L i Shishi was defeated by AlphaGo owned by Google. It marks the progress of artificial intelligence. But there is a sa ying gose like this"Every coin has its two sides.".Some peop le express favourablely receive, others worry about that AI would cause chaos to humans.To this,it's not comprehensive en ough. Undoubtedly, advanced technology has brought much convenience to us.In some special work environment, AI can help human t o get the job done.Simultaneously, it's likely to lead to c ertain unemployment. But it is not said that AI will replac e or even destroy human.There are two reasons to support th e view. To start with,AlphaGo hinges upon the powerful compu ting capacity of the computer and repetitive logic.It has me rely a in-depth study to departed information,and its wisdom only shows in a certain field.However, the superiority of humans is the expectations and imagination for future, rather than cognitive and learning abilities. We should innovate a udaciously.By means of very unusual strategy, one can overcom e AlphaGo.Furthermore,people can understand or convince others by communication. In fact,a good deal of tests show that it can't persuade the human to do anything. It should be c oncerned that there might be an outlaw uses the AI to comm it crimes in the future. From what has been discussed above, I think we should rever e the AI instead of threatened. In the future, humans will cooperate with AI to finish work.It is conducive to promot e the development of society more and more quickly and effi ciently.