reversing clapper

例句：

1. 1. The tool is designed to help with the reversing of heavy objects.
   这个工具设计用来帮助重物倒置。
2. 2.During the assembly process, the worker used a reversing clamp to secure the bolts.
   在装配过程中，工人使用反向夹具来固定螺栓。
3. 3. The engineer found it necessary to use a reversing clamp to prevent the machine from overheating.
   工程师发现有必要使用反向夹具以防止机器过热。