jaws of vise

例句：

1. 1.The tool is used to hold the jaws of a saw together.
   这个工具用来固定锯片的钳口。
2. 2.The engineer had to use a jaw clamp to hold the bolt in place.
   工程师不得不使用钳口夹具来固定螺栓。
3. 3. The mechanic was able to remove the jammed jaws with ease.
   这位机械师能够轻松地松开卡住的钳口。