您要查找的是不是:
- 管道pipeline
- 管道系统ductwork
- PE管道PE pipeline
- 压力管道pressure conduit
- PEpolyethylene (PE)
- 管道工程pipe work
- 下水管道sewage line
- 管道井piping shaft
- 工艺管道process pipe
- 管道泵inline pump
- 水管道water conduit
- 石油管道petroleum pipeline
- 输送管道running piping
- PE燃气管道PE gas pipeline
- 他们正用管道把水引走。They were piping the water away.
- 煤气管道gas conduit
- 管道安装piping erection
- 管道运输pipage
- 天然气管道natural gas line
- 冲洗管道flushing pipe