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1)  no bottomhole
无井底
2)  bottom hole
井底
1.
Effects of stress field in bottom hole on borehole deviation during gas drilling
井底应力场对气体钻井井斜的影响
2.
In order to explore the effect of ambient pressure on jet flow field in deep well and ultra-deep well, a physical model for flow field of confined water jet at bottom hole was established.
考虑到深井、超深井中井底围压对射流流场有一定的影响 ,建立了井底受限射流流场的物理模型。
3.
When the pumping well runs normally, self-excited pressure wave can be generated at bottom hole by means of wave generator.
 抽油井正常工作时,借助波动器可在井底产生自激压力波。
3)  Bottom-hole
井底
1.
The measurement and analysis of craters and bottom-hole pattern is an important link of drilling test and a key means of studying rock-breaking mechanism and valuating rock-breaking efficiency.
岩石破碎坑和井底的测量分析是钻头实验技术中的重要环节,也是钻头破岩机理研究和钻头性能评价的重要手段,而现有的测量分析方法精度或效率较低。
4)  sand-face shut-in
井底关井
5)  having no bottom
无底
6)  pit bottom
井底;井底车场
补充资料:井底
1.见"井底蛙"。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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