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冲击旋转钻井
释义
冲击旋转钻井
Encyclopedia
工学
钻井方法
释
percussion and rotary drilling
冲击旋转钻井
在普通旋转钻进的基础上同时使用冲击器,使钻头在冲击动载和静压旋转的联合作用下破碎岩石的钻井方法。
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Shifeng Temple
Shifodong
Shifosi Shuiku
shift
shift and invert
shift-and-invert
shift angle
shift automorphism
shift decision
shift dynamical system
shifted factorial
shifted inverse iteration
shifted QR method
shifted Weyl reflection
shifter
shift factor
shift-in
shift-induced interference
shifting
shifting balance theory
shifting bottleneck procedure
shifting cultivation
shifting dunes control at Ningxia Shapotou Section of the Baotou-Lanzhou Railway
Shifting (Funds)
shifting method
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