“direct or reversecirculation rotary drill”的概念、定义、翻译、参考文献-科学参考

单词	direct or reversecirculation rotary drill
释义	direct or reversecirculation rotary drill Encyclopedia 工学桩工机械释 direct or reversecirculation rotary drill正反循环回转钻孔机依靠钻具回转运动切削地层成孔，以正循环和反循环方式排渣的潜水式钻孔机。
随便看	Earth-orbiting probe Earth-orbiting satellite earth-orbit rendezvous Earth orbit telescope earth orientation parameter earth orientation parameters earth penetration warhead earth penumbra Earth, Planets and Space earth plasmasphere earth point earth pole earth potential difference earth potential field earth pressure earth pressure balanced shield machine earth pressure balance shield method earth pressure under non-limit state earthquake earthquake action earthquake catalogue earthquake disaster earthquake disaster emergency rescue team earthquake disaster map earthquake disaster monitoring in civil engineering

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