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防磨减扭装置
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防磨减扭装置
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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。
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rotational entropy
rotational evolution
rotational family
rotational fault
rotational field
rotational flow
rotational flow impeller
rotational freedom degree
rotational grazing
rotational inclination
rotational inertia
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rotational irrigation
rotational latency
rotational line
rotationally symmetric metric
rotational medium
rotational modeling
rotational modulation
rotational modulation collimator
rotational molding
rotational momentum
rotational motion of nucleus
rotational moulding
rotational parallax
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