bench clamp

例句：

1. 1. The tool is used to hold the bench together during assembly.
   这个工具用于组装期间固定工作台。
2. 2. The engineer tightened the bench clamp to ensure proper fit.
   工程师紧固了工作台夹具以确保正确配合。
3. 3. After the work was done, the bench clamp was removed and the machine was cleaned.
   工作完成后，卸下工作台夹具并清洗机器。