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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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Clifford algebra
Clifford analysis
Clifford circle theorem
Clifford curve theorem
Clifford Curzon
Clifford Dwight Waldo
Clifford Geertz
Clifford Glenwood Shull
Clifford group
Clifford-Klein form problem
Clifford minimal hypersurface
Clifford number
Clifford Odets
Clifford parallel
Clifford parallels
Clifford ring
Clifford semigroup
Clifford surface
Clifford theorem
Clifford theory
Clifford torus
Clifford translation
Clifford wavelet
cliffs and waves patterns
Cliffside Caves in Chongxiangsi
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