“孔底动力钻具”的概念、定义、翻译、参考文献-科学参考

单词	孔底动力钻具
释义	孔底动力钻具 Encyclopedia 理学钻具释 downhole motor孔底动力钻具位于钻柱下部，由钻井液（循环介质）或电力驱动，实现回转、冲击碎岩的钻具。
随便看	spherical harmonic expansion spherical harmonic function spherical harmonic method spherical harmonic oscillator spherical harmonics spherical harmonic tensor spherical helix spherical homology class spherical hypersurface spherical icosahedral-hexagonal grid spherical image spherical image map spherical indicatrix spherical indicatrix of binormal spherical indicatrix of scattering spherical indicatrix of tangents spherical inversion spherical isosceles triangle spherical laser fusion target spherical lateral aberration spherical layer spherical lemniscate spherical lens spherical linear element spherical longitudinal aberration

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。