To operate within the power cable line protection zones.

在电力电缆线路保护区内进行作业.

Through describing the hazards of lightning on fiber optic cable, several lightning protection measures of cable line are introduced.

通过描述雷电对光缆的危害，简要介绍了光缆线路的几种防雷措施。

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.

Objective Explore self-supporting optical cable line guide wire threaded pipe endotracheal intubation in difficult intubation time of the application of the efficacy and safety.

目的探讨自制光索支撑引导行钢丝螺纹管气管内插管在困难气管插管中应用的有效性和安全性。