slack adjuster pull rod

例句：

1. 1.The engineer adjusted the slack adjuster to ensure smooth operation.
   工程师调整了松弛调节器以确保顺利运行。
2. 2. The technician replaced the slack adjuster with a new one.
   技术员用一个新的松弛调节器替换了旧的。
3. 3.The machine's slack adjuster was causing problems with its operation.
   机器的松弛调节器导致了其操作问题。