| 词汇 |
directional well drilling |
| 释义 |
directional well drilling
基本例句
定向井钻井
Turbodrills is very important downhole drilling tools in petroleum drilling engineering,especially in deep well and deflected well.涡轮钻具是石油钻井工程中的一种重要井下动力钻具，在深井和定向井钻井中有着广泛的应用。 |
| 随便看 |
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