>8)15" />
搜档网
当前位置:搜档网 › 程控交换技术

程控交换技术

!" #$ %& !

'()*+, -,./ 01 23

4(

56

78

29

:;< =>?@;A

BCD EFG HIJ KLMNOPQRS TUDE &V

&WNOXHIYZ7[

!"# $%$ " &' ()"' \] * + ,

#) "'& ^_`abc -.$ &/& '"00#) #,1 0 ,2 ) 2 3

4 5 3 &6)0($7 8 5 de9fgh9#+ #, 5 9

.: . 9( ;9 i jk NOlm

$ 3 < =3 ' , > < $ ? 0 5

>> 8 < 8 @ 5

) 1 5 , 3 = 5 5 , 5 , ,3 1 =3

,3 , , , , 1 ' , > < $ ? 0 5

!"# ?n ?n ?n$%$ ?n" &' ?n ()"' ?n\] ?n* + , ?

#) ?n"'& ?n^_`abc ? -.$ ?n&/& ?n'"00#) ?n#,1 0 ,2 ?n) 2 3 ?

4 5 3 ?n&6)0($7 ?n8 5 ?n d e9?n f g h9?n#+ #, 5 9?

.: . 9? ( ;9 5 2 1 ' , > < $ ? 0 5

u}pq~ W78

pq }t

vu}Xy z

u pq Xy F

$%&'

$%*+

./01234

!9: ;

,-

nnvu}X ?¢£

u}D¤¥ |§¨?a

??

EFGHIJKLMNOP QRSTUN VWXYAB

Z[

ab

- &?ˉ°±2`3′ μ? ·.?DY1oQo

′ ?! `3????àáo????7??è

$éfê`3?ìí o`34 ?? DW ?L??ì

íòó??ì? ?

o×?0ùst'o? ?? 3|o ??ú

E?üúEYT

`3 ?à

áa??

?r4

&- K !-. ?7?

fê`3

??`3

?è??

$é4

53 ?4

D'564 4??è

DüúE)ééê'?ìo ?? í? ?e]K? òr?ó

? `??÷ ?ù Tú 534??ü y Nt? ? F

t 3 oáa??

DüúE y M

53 ?K M

? ?

? k ? X ? k i ?

?|§? ?W! |§ "# ?$ %&

zZè'T(A B )* +,-?é 3.è T(

M/?F0J1fê Kg21?? 0J %·

T( 34(5 6 7 68? 0J 6

0Jy 7 90Jy 680J

-ghiWj kl mn[opq[r

stu mvw x yz{Sk|

n n m}n~ LpY n r m Lp

Y n

n n m p n p n r m p

n p n

a pY W pq

pY W pq

p W pq1

DE: ;<=k > )*?á e@± ' ? k

A5y

! <)* ±

"#$%&'()})*|§ BC DE FG K¢£

! "# $% "# &'"# ()*+"#

,-./ 01 &' 234 234 56789: ;< => ? 78 0+@A

B CDEF

GH;IJK ;I $L <;I

MN;IJK

AO;I PQ

RSJK :./

RSTUV

RSWXJKYJ./ PQ

!" #$%&'( ) *+

, - #$%&.

)

/0 1(

234 23*+

23*+5234

67 8 9:;<=

> ?,

@A,

BC,

DE,

F 1(

GHIJ

K-LMNE IJO8 1(

lm} AO } 2 &AO AO ;IU &!9 2 M M 7< + \] \]

M 2 < } * } } A& } jA j; } }

} } } 0 ?e ,-}

¢K}

! "#$%&' £&¤¥ £& |

( ")*+,-

YJ./ &'CD

} §¨

&'CD ?a?§¨

. / 0

!"# !"# $

!" ! " %&'() # &'*+ ,-./ 0 $ % 1 23() % 1 23()

456789 67 :

!"#;<=6

!"#$ %&'()*+(,-./0

12 3 456 78912 :;<=>?@A

BC DE12 F'G+HIJ !K J

12 LM?NO P12DEQJ RSTUVWXYZA

[\] ^_`12 abc ^_ def"d4g h[ \] <= [\] >i j c kclmn F@Do

n pq!rs tuvcwx >@!?@AByC DE

z{] ^_z{] |A H}~ ! DE z{

7 lmn A { !z lmD lmn

|A H n =Do P z{R R

q? A,w[\]!z{] ^_ F? + J

^_( w ^_

^_g ^_ |A ?¢£!¤=

n ¥|z{] ^_§ H n¨¢?a? ?

P - § ZA ?ˉ 7 °±2d

ef"d R¥ ^_3A′μ?]· - ?1&ow?

]?. ^_ v?(¥|A?oQJ?Dàw á? ??]?

.^_ v??(3? ? ^_@??1&o?] ^_

è &? ^_

[\]z{]!&? ^_éê bc ^_R.bc ^_h

?.>iìGí= ?^_!?]^_??Aw~ ^_ D?!

?yC ?D ?òó?a ?\??×? ?ù?eú??]

üYg &? ?^_QT? J ?àáa

7X |A ?CG? ? üY ? ? é ?? ?

è 3Ré @???&?

ê??×ì] !í?ZA?|&? h?C

G? ?? e CG? ?ò ?ò ? ?

?ò ??(3é ó +?ò&?

g |A üYa??

??üY? j?? ?w??÷?!?ù3??? ?Rú ?E"# ?ü y w t?o?

?òt?^_?òt?^_ [ ¥ ??t?^_7!?

? üY Wàw

= ???ò

Wü ???ò

Wü§

??

ü\D

\??×?

?

!?×?

?

|A ?? n

w ? ?

1 ?òt?o

?!?ò G

Wàw Wê??×ì]!a

?¤= ? = M f ! '9f ü

W?òü ù? : ?ù ( t ¨é

h ?Y ? ?

x ?ò#è! W?òü t? ?

? t?$7 ? ?3ó"e W :?òü

?òü§#??ò#!?ò üY &? uií=ìG

$§#??ò# $% ??&A ? '()

#!?×

ê??×ì] ¨

?ò üY § $* Don Don( ?+ üY ,T ó3S RR\?,-

. ??&

A Y???/

G]

! G]

§0t?/ G?=12

ìG 3

??4.ìG 5'6+

R.7 t? 8|A

A /G] Róo 9'( Y 12

AB\? 4óAB?:A $§ R./0

G] 0R.t? 8ü 8; CG?(t<12?

QJ 3

??

/G] F +=>

7 ?? >i ?0 G] CG?] 7 ?ò ?? >i ?0!@ Y 9A ?é¢

]B = C W QJ

?? ?"=?ò ? °R[ó ó?? ?\?'(

?A D ê?;R EF G ?? ? H

I

?E ??)s =JK YàL ?MN ??)

+ O ? D?? P&=

Q('(/R S

T ?'( ?/R U ?'( ? MN ?E"# 3 ? ?ò#è! ?'(

? MN AY L .I ?? w

3ó )

#;V)#+W

G?

)#F'G+5X)#! 5X)#??)#+WYZ5X P|A3?

)#Q [ \ ? Y ' Z a ? \ ? )#+W G ]^RS

a ? )#+W G ]_RS 3(ó`a \ ?

Y ó

a ?, Ybc

aè!]a í?ZA

d ?ef9|A Z ?

g5X)#Q [ +g of?h[?× )# RíY L .MN JKI s = i t? × A

×?$*jk f )l ×jk f)l

×t k f)l

×m / nN t k

f× ×¨

^_§ ×ZA ]4+í?

. ?ò ?ì]Q [$*

ê??×ì]?

! )ì]$§

4g d ?ef9ZA4í R?Q [$'(u &/R +

ó 4o μ '(82

ó4R. ?w

p 42 '(I M j )#( '?= q ×í3ó p

R.

r ?

^_§ ?&

A ? μ stu iY . r è!4R. r :A μ μ

. r

W=R

v v

W=R.

&v 3 ??R.v:A μ R.&v:A μ

w ¢ r |A xy ,

r ! K . r Aw 6 ?

t<#? ? r v

相关主题