milled lead

例句：

1. 1. The construction of the bridge required theuse of milled lead for its structuralintegrity.
   建造这座桥需要使用精制铅来保证其结构完整性。
2. 2. The engineers used milled lead to reinforce thebeams in the bridge.
   工程师们使用了精制铅来加固桥梁的梁。
3. 3.The milled lead was carefully cut andshaped to fit the specific needs of theproject.
   精制铅被仔细切割和成型，以满足项目的具体需求。