... bore钻；镗；打眼；孔 bore-hole bottom井底 bore-hole line井中套管柱 ...
基于80个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
Then, the influence of bottom hole pressure on the failure range of weak plane is analyzed for bore holes in naturally fractured formation, with the help of the local coordinate system.
通过建立局部坐标系，得到了裂缝性地层井壁发生失稳的弱面角度随井底压力变化的规律。
youdao
应用推荐
模块上移
模块下移
不移动