floor choke manifold
... 反循环 reverse circulation 方井口 floor choke manifold 方钻杆 kelly ...
基于1个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
针对以上情况，建议在井口处安装倒置放置的扩散式传感器，方井处安装吸入式传感器。从而能更准确检测硫化氢浓度。
Depending on that, suggest place a dispersive sensor upside down at the wellhead and a suction sensor at the cellar to test the hydrogen sulfide concentration accurately.
youdao
应用推荐
模块上移
模块下移
不移动