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冲击回转钻进
释义
冲击回转钻进
Encyclopedia
理学
钻进方法
释
peicussive-rotary drilling
冲击回转钻进
在钻头已承受一定静载荷的基础上,以纵向冲击力和回转切削力共同破碎岩石的钻进方法。
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sand polished section
sand-pouring machine
sand prevention and control engineering of Dunhuang Mogao Ku
sand prevention by transferring measures
sand prevention for railway
sand prevention for road
sand production
sand production prediction
sand-protecting barrier
Sandra A.Thompson
Sandra Bullock
sandramycin
S.Andrea,Mantua
sand reckoning
sand recovering machine
sand removing device
sand retaining wall
sand ripple
sand ripples
Sand River Convention
Sandro Botticelli
Sandro Chia
S Andromedae
Sandro Veronesi
sand sets
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