“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	magnitude distortion magnitude effect magnitude equation magnitude margin magnitude of an eclipse magnitude of a vector magnitude of eclipse magnitude of greatest eclipse magnitude of the discontinuity magnitude range magnitude-redshift diagram magnitude-redshift relation magnitude relation magnitude scale magnitude screen magnitude-spectral type diagram magnitude-spectral type relation magnitude spectrum magnitude system magnocellular part magnolia family magnon magnon blocking effect magnon diode magnon field effect transistor

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。