channel type jig

例句：

1. 1. The engineer used a channel type jig to test the new pipeline.
   工程师使用通道类型夹具来测试新的管道。
2. 2.The technician used a channel type jig to measure the diameter of the pipe.
   技术员使用通道类型夹具来测量管子的直径。
3. 3. The tool was designed specifically for channel type work.
   这个工具是专门为通道类型工作设计的。