... plugging relay 防逆转继电器 plugging-up device 闭塞装置 plug hole 塞孔 ...
基于16个网页-相关网页
plugging up device 闭塞装置
One-trip setting is accomplished by pressuring up against a plugging device below the packer after it has been run to depth.
一次下钻坐封时，首先将封隔器下入到预定位置时，通过在位于封隔器下方的短接下入堵头而后加压实现坐封。
youdao
应用推荐
模块上移
模块下移
不移动