“power-driven system”的概念、定义、翻译、参考文献-科学参考

单词	power-driven system
释义	power-driven system Encyclopedia 工学钻井装备释 power-driven system钻机动力驱动系统为钻机起升、旋转和循环提供动力的配套设备组合。
随便看	helotism Helotry System Helou Xuan HELP helper T cell helper T cell 17，Th17 helper T cell 1，Th1 cell helper T cell 22，Th22 helper T cell 2，Th2 cell helper T cell 9，Th9 helper T cell，Th cell helper T lymphocyte helper virus helpful herding helping behavior helping information cyber criminal activities help people help themselves Helsingborg Helsinki City Theatre Helsinki Meeting Helsinki University Observatory Helsinki University of Technology Helson Helson set Helson-Szeg⍥ measure

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