jacking header

例句：

1. 1. The engineer used a jacking header to lift the heavy machine.
   工程师使用顶杆来抬起这台重型机器。
2. 2. During construction, it's important to use jacking headers to avoid damage to the structure.
   在施工过程中，使用顶杆可以避免对结构造成损害。
3. 3. The team successfully completed the project using jacking headers,which saved time and resources.
   团队成功使用了顶杆完成了项目，节省了时间和资源。