fill pipe column

例句：

1. 1. The engineer used a special tool to fill the pipe column.
   工程师使用一种特殊的工具来填充管道柱。
2. 2. The technician carefully filled the pipe column with concrete.
   技术员小心地用混凝土填充管道柱。
3. 3. The construction crew was working on filling the pipe column with water.
   建筑工人正在用水填充管道柱。