“螺杆钻具”的概念、定义、翻译、参考文献-科学参考

单词	螺杆钻具
释义	螺杆钻具 Encyclopedia 理学孔内钻具释 positive displacement motor drill螺杆钻具将钻井循环介质的液压能转化为机械能的容积式孔底动力钻具。简称螺杆钻。
随便看	classical approximation classical art classical astronomy classical beta decay classical bibliography Science classical Boltzmann distribution classical boundary conditions classical calculus classical canonical form classical canonical matrix classical capacity of a quantum channel classical categorial grammar classical celestial mechanics classical Cepheid classical chemical method classical Chinese grammar classical Chinese novels Classical Chinese semantics classical clustering classical coherence classical combinatorial problems classical communication classical compact simple Lie groups classical completeness classical complex

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。