“percussion and rotary drilling”的概念、定义、翻译、参考文献-科学参考

单词	percussion and rotary drilling
释义	percussion and rotary drilling Encyclopedia 工学钻井方法释 percussion and rotary drilling冲击旋转钻井在普通旋转钻进的基础上同时使用冲击器，使钻头在冲击动载和静压旋转的联合作用下破碎岩石的钻井方法。
随便看	regular polymer regular polytope regular position regular power series regular precession regular premium regular prime regular prime number regular prism regular problem regular process regular product regular projective transformation regular pyramid regular quadratic form regular quadratic space regular quadric hypersurface regular quotient object regular ramification point regular random process regular rational function regular rational mapping regular realization regular reduction regular region

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