1) acid gas pipeline weld
酸性气体输送管道焊接
2) gas transmission pipeline
气体输送管道
3) backing ring for welded pipe joint
流(体输)送管焊接接头衬环
4) Oil-pipeline welding
输油管道焊接
6) oil and gas transmission pipeline
油气输送管道
1.
The difference from the plug equipment available for oil and gas transmission pipeline is that the plug can not only be used for double automatic plugging removal and double pl.
与现有用于油气输送管道维修的封堵设备不同的是,该封堵器不仅能实现双向自解封,适用于管道双向封堵,而且可承受0。
补充资料：管道输油(见石油管道输送)
管道输油(见石油管道输送)
pipeline transportation of petroleum
管道输油 (pipeline tra住spor毛a‘lulL~旧公俩普费输送。上J~‘一
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条