“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	tension meter tension of reeling thread tension pneumothorax tension receptor tension, tensile force tension type electronic fence tension type headache Ten Sisters of Yue Opera tensodiffusion tensoelectric tensoelectric semiconductor device tens of thousands enterprises help tens of thousands villages tensometer tensometry tensomodul tensor tensor algebra tensor analysis tensor bundle tensor calculus tensor capacity tensor component tensor contraction tensor criterion tensor density

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