“防磨减扭装置”的概念、定义、翻译、参考文献-科学参考

单词	防磨减扭装置
释义	防磨减扭装置 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	symplectic bilinear form symplectic bone symplectic capacity symplectic class symplectic cobordism symplectic cohomology symplectic connection symplectic coordinate symplectic diffeomorphism symplectic difference scheme symplectic form symplectic geometry symplectic group symplectic homogeneous space symplectic inner product symplectic integrator symplectic invariant symplectic Lie Algebra symplectic manifold symplectic map symplectic mapping symplectic matrix symplectic method symplectic method in Elasticity symplectic operator

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