The main obstacle which prevents the common usage of on-line detecting system is the large quantity of line polesandtowers.
现有在线检测系统能否普遍应用的主要障碍是线路杆塔的数量巨大。
2
Line repetition measurement is on important link in transmission line construction, which directs the localization of polesandtowers, directionality and linearity of lines.
线路复测为线路杆塔的定位、线路的方向性、直线性等提供依据,是输电线路施工的重要环节。
3
Erect and maintain steel, wood or concrete poles, towersand guy wires.