“downhole motor”的概念、定义、翻译、参考文献-科学参考

单词	downhole motor
释义	downhole motor Encyclopedia 工学钻井装备释 downhole motor井下动力钻具连接在钻铤与钻头之间，随钻柱一起下入井底，驱动钻头旋转破岩的动力机。又称井下马达。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	coupled human-environmental system coupled longitudinal vibration test coupled map lattice coupled map lattices coupled method of chromatography and mass spectrometry coupled mode coupled modes coupled mode theory coupled-mode theory coupled oscillator coupled pendulum coupled pendulums coupled-perturbed self consistent field method coupled pickling line and tandem cold mill coupled quantum well coupled resonators coupled resonators optical waveguide coupled room coupled shear wall coupled system coupled thermal analysis techniques coupled transformer coupled transmission line coupled transport coupled wavefunction

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