... 油管打捞作业：tubing catch 油管打捞筒：tubing socket 油管打捞矛：tubing spear ...
基于38个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
In the coal face, tubing length of 1000 meters, up to more than 4000 joint socket, the tank without a special dust-proof facilities.
在采煤工作面，油管总长1000多米，接头插口多达4000多个，液箱无特殊的防尘设施。
youdao
应用推荐
模块上移
模块下移
不移动