main pipeline
短语词组
- main steam pipeline 主蒸汽管路
- main drainage pipeline 主排水管道
- main gas pipeline network 主干输气管网
- main feed pipeline 主给水管路
- main -pipeline unit 母管制机组
- main machinery pipeline 干线管路
- 10CrMo910 main steam pipeline CrMo910 主蒸汽管道
- main gas pipeline 长距离输气管道
- cargo oil main transfer pipeline 货油输送总管 返回 main pipeline