line overhead

例句：

1. 1. Theengineers are installing new lines overhead toimprove the network's performance.
   工程师们正在安装新的架空线来提高网络的性能。
2. 2. The construction crew is working on theoverhead lines to ensure they are safe forpedestrians.
   施工队正在工作于架空线以确保它们对行人是安全的。
3. 3. Thecompany has invested in upgrading its overhead linesto meet modern communication standards.
   该公司已经投资升级其架空线以满足现代通信标准。