“anti friction and torque device”的概念、定义、翻译、参考文献-科学参考

单词	anti friction and torque device
释义	anti friction and torque device Encyclopedia 工学定向井工具释 anti friction and torque device防磨减扭装置依靠内套和本体的摩擦旋转代替钻柱接箍和套管内壁的硬摩擦旋转，实现降低钻柱扭矩的器械。
随便看	Guatemalan Party of Labour Guatemala's National Democratic Movement（1944～1954） Guatemala's Uprising（1867～1871） Guatemala，El Salvador and Honduras Economic Cooperation Treaty Guatemaltecos guava guava root knot nematode Guayaquil Conference Guayasamin Museum Guayas River guayule guayule rubber Gua Zhier Guazhou Guazhou Xian Guban (a small drum and a clapper) Gu Bao Gubeikou Gu Bingxin Gubkin, Ivan Mikhailovich Gu Cai Gu Cangwu Guccia Gu Changwei Guchaohao

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