...版、英文版） 关键字: 反循环钻头；人造龙卷风；结构设计；气固两相流；数值模拟[gap=1239]Key words: reverse circulation bit; artificial tornado; structure design; gas-solid two-phase flow; numerical simu..
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air reverse circulation bit 空气反循环钻头
special reverse circulation bit 专用反循环钻头
reverse circulation core bit 反循环取心钻头
reverse circulation coring bit 反循环取心钻头
reverse-circulation drilling bit 反循环钻头
reverse circulation sampling bit 反循环取样钻头
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