pipe slacking block
钻杆盒在旁侧的井架 bulge derrick
钻杆填料盒 [油气] rod stuffing box
·2,447,543篇论文数据，部分数据来源于NoteExpress
当在钻杆盒上提起或放置直径大于6 1／4〞的钻铤立柱时，一定要用气动绞车拉住以保安全。
When picking up or setting down drill collar stands larger than 6 1/4" on the floor board, always snub with the air tugger."
youdao
应用推荐
模块上移
模块下移
不移动