one-pipe steam heat-supply network

例句：

1. 1. The engineer used a pipe to connect the two systems.
   工程师用一根管子将两个系统连接起来。
2. 2. The plumber replaced the broken pipe with a new one.
   水管工用一根新的管子替换了损坏的管子。
3. 3. The pipeline carries oil from the refinery to the refinery's storage tank.
   这条管道将石油从炼油厂输送到炼油厂的储油罐。