“正反循环回转钻孔机”的概念、定义、翻译、参考文献-科学参考

单词	正反循环回转钻孔机
释义	正反循环回转钻孔机 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	ascend ascendant ascendant continued fraction ascendant subgroup ascending ascending and descending，floating and sinking ascending branch ascending central series ascending chain ascending chain condition ascending chain condition for left ideals ascending development method ascending difference ascending earth station ascending factorial ascending ideal series ascending induction ascending node ascending normal series ascending order ascending order of powers ascending phase ascending powers ascending power series ascending reticular activation

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。