lead covered wiring work

例句：

1. 1. The lead-covered wiring was installed in the new building.
   新建筑中安装了铅包电线。
2. 2. The lead-covered wiring was a major concern during the construction phase.
   在建设阶段，铅包电线是一个主要问题。
3. 3.The lead-covered wiring was responsible for ensuring the safety of the electrical system.
   铅包电线负责确保电气系统的安全。