rigging bell crank

例句：

1. 1. The engineer carefully adjusted the rigging bell crank to ensure smooth operation.
   工程师小心翼翼地调整绞车滑轮，以确保操作顺畅。
2. 2. The rigging bell crank was a critical component of the ship's engine system.
   绞车滑轮是船只引擎系统的关键组成部分。
3. 3.During the construction phase, the engineers had to pay close attention to the rigging bell crank to prevent any potential issues.
   在施工阶段，工程师们必须密切关注绞车滑轮，以防出现任何潜在问题。