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- underground cable line 地下电缆线路
- Power is fed into the electricity line through an underground cable. 电力通过地下电缆传输给这条电线。
- The electricity line is fed with power through an underground cable. 这条电线的电源是通过地下电缆传输的。
- To operate within the power cable line protection zones. 在电力电缆线路保护区内进行作业。
- Conversation by underground cable, 90 miles-New York to Philadelphia. Invention of Keith Line Switch, resulting in enormous reduction in cost of automatic boards. First used at Wilmington, Delaware. 通过地下电缆传输的电话线路连接纽约和费城,全长90英里。基思寻线机的发明,导致自动交换台的成本大幅降低,并首次用于特拉华州的威明顿。
- Installation of the Lanzhou-Xining-Lhasa optical cable line was completed. 兰(州)西(宁)拉(萨)通信光缆铺设完毕。
- Overhead lines have more outages than underground cable per unit length, but the outages are usually shorter in duration. 架空线路单位长度的停电数要比地下电缆的多,但停电持续时间短。
- First conversation by long distance underground cable, 10 miles - New York to Newark. First installation in Chicago begun. Earliest use of measured service in automatic exchanges. 首次通过地下电缆实现长途电话传输,从纽约到纽瓦克,全长10英里。芝加哥开始按章第一套电话系统。在自动化交换中首次使用计次制通话业务。发明浦尔生电弧无线发射机。
- A system consisting essentially of underground cables. 基本上由地下电缆组成的系统。
- The cable line had brought the two continents so near that people could begin to talk to each other across the Atlantic in a fraction of a second. 电缆线缩短了两大洲之间的距离,从而使人们开始能够在瞬间隔着大西洋相互交流。
- Card should be connected to the cable Jie Yaka, then cable line connecting a monitor signal. 应该使显示卡连接解压卡的转接线,再把转接线连接显示器的信号线。
- Overhead line and underground cable 缆-线混合线路
- This paper presents the principle of optic time domain reflectometer (OTDR) and the fault location of optic fiber cable line by OTDR. 介绍了光时域反射仪(OTDR)的测试原理及其对光缆线路中经常出现的光纤故障点进行了分析,并简述了用OTDR测量时应注意的问题。
- HAN Ji-chang.Feasibility of adopting recloser for 10 kV cable line after fault.Distribution &Utilization,2000, 17(4) :24 -26. [4]韩吉昌.;10 kV电缆线路采用故障重合闸的可行性[J]
- In general, the power engineer adopts fixed value of Basic Lightning Impulse Level (BIL) as equipment specification, and put lightning arrester at the joint of tower and underground cable. 在变电所之系统设计上,设备绝缘等级是采用传统固定式的基本雷击脉冲准位(BIL)来作为规范,而避雷器是固定安装于地下电缆的入口端的位置。
- Underground cables link Boston, NYC and Washington. February 26, Boston-Washington under-ground telephone cable placed in commercial service. 地下电缆连接波士顿、纽约市和华盛顿。2月26日,波士顿至华盛顿地下电缆投入商业运营。
- In lab experiments, they eliminated possible power sources such as radio or microwaves and underground cables. 在实验室做实验时,他们排除了可能存在的电源,比如,无线电、微波以及地下线缆。
- As a subnet of transport network management in TMN, Optical fiber cable line Automatic Monitoring System (OAMS) plays an important role in the stable operations of communication networks. 摘要光缆线路自动监测系统是电信管理网中传输网管理域的一个子网,在通信网络的稳定运行中扮演着重要的角色。
- The further study on the relation between the temperature and voltage of the electric underground cables provides a guide for the optimal arrangement of the cable. 为进一步研究直埋敷设在地下的电缆的温度和电压之间的关系和实际的电缆安全运行提供了数据。
- Megohm inspection method is to form a terminal connected to the electric cable line, another terminal connected to the motor casing, the shake table megohm observed value of insulation resistance. 检查方法是将兆欧表上的一个接线柱接在电泵电缆线上,另一接线柱接在电机外壳上,摇动兆欧表,观察绝缘电阻值。