“directional drilling”的概念、定义、翻译、参考文献-科学参考

单词	directional drilling
释义	directional drilling Encyclopedia 理学定向钻进释 directional drilling定向钻进利用地层造斜规律或人工造斜工具使钻孔按设计轨迹要求钻达预定目标的钻进方法。
随便看	normal frequency normal frequency curve normal function normal function algebra normal fundamental region normal fundamental system of solutions normal galaxy normal geodesic normal geomagnetic field normal gravitational potential normal gravity normal gravity field normal gravity formula normal group normal handwriting normal height normal *-homomorphism normal homomorphism normal hyperbolic equation normal hyperelliptic integral normal hyperelliptic integral of the first kind normal identity normal image normal incidence normal incidence telescope

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