首加纜 的英文怎麼說
中文拼音 [shǒujiā]
首加纜
英文
extra bow line-
First, executing insulation and conductivity test for loop cable. then, pulsing simulation signal at place of local transmitter and output switch
首先要對迴路電纜進行絕緣和導通試驗， 2 ）然後在現場變送器、發訊開關處加模擬工藝信號。Beijing telecom had to make its decision on the basis of the energetic development of its basic transfer network, instead of rendering it an accessory to switching. as a result, a basic unit of the transfer network of 155 mbits ( hereinafter referred to as stm - 1 ) is added so that e1s and stm - 1s coexist. the pstn and the internet prefer stm - 1 connections at the tandem exchanges, high - capacity end exchanges of users and backbone convergence points
加大傳輸網、光纜網的發展力度，基礎傳送網超前發展，不能再作交換的"附庸" ，已成為公司決策的出發點；傳輸網的基本單位要增加155mbits （下稱stm - 1 ）為單元的基本單位， e1和stm - 1並存；電話交換網和因特網在匯接局、大容量用戶端局和骨幹會聚點以stm - 1連接為首選。In this thesis, we realize the web - based rtu in telecontrol system for electrical railway systems by using new techniques of computer, communication, and existing the resources of super - speed fiber optic cable that we have already had. besides, we also realize the multi - receiver of the rtu real - time information and the consistency of the information ; the bottleneck problem of the communication and " information solitary island " can also be solved. improving the consistency and real - time performance of information transmission, sending all kinds of information more accurate, safety and faster to the places where the information is required and receiving permitted, realizing larger scope information sharing are all newly and highly anticipated projects in the area of supervise and control
最大程度的結合新型計算機通信、網路及軟硬體技術，利用目前已經具備的高速光纜通道資源，實現scada系統被控端基於web方式的廣泛聯網，可以解決rtu信息一發多收、一致性，通信瓶頸及『信息孤島』等問題，提高信息傳輸的實時性和一致性，把各種信息更加準確、安全、快速的送到所有需要並被允許的地方，實現更大范圍的信息共享，是目前監控領域的一個嶄新而又備受關注的課題，本文首先綜述了電氣化鐵道scada （電鐵scada ）系統的三大組成部分：調度端、被控端和通信通道的發展概況，闡述了傳統模式的電鐵遠動系統的弊端所在，接著提出了基於web模式的電鐵scada系統硬體結構設計。The length of installed long - distance optical cables increased from 150, 000 km in 1997 to 470, 000 km in 2002, and the number of fixed - line and mobile phone subscribers increased from 83. 54 million to 421 million, ranking china first in the world
長途光纜線路長度由1997年的15萬公里增加到2002年的47萬公里；固定電話和移動電話用戶由8354萬戶增加到4 21億戶，居世界首位。分享友人