loop expansionpipe

例句：

1. 1.The engineer used a loop expansion pipe to expand the steel pipe.
   工程师使用一个膨胀管来扩张钢管。
2. 2. The company installed an expansion pipe to prevent water leakage during construction.
   该公司安装了一根膨胀管以防止施工期间的漏水。
3. 3. The loop expansion pipe was designed to improve the flow of gas through the pipeline.
   这个膨胀管的设计是为了提高气体通过管道的流量。