contacting line

例句：

1. 1. The power grid is the main contacting line for our city's electricity supply.
   电网是我市电力供应的主要接触线。
2. 2. The engineers were working on the contacting line to fix the fault.
   工程师们正在修理接触线以修复故障。
3. 3.The construction of the new subway station will require the installation of a new contacting line.
   新地铁车站的建设将需要安装新的接触线。