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Effect of suction nozzle structure on reverse circulation performance of down-the-hole hammer drill bit

机译：吸嘴结构对下孔锤钻头反向循环性能的影响

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Yanshun Zhao; Peng Li; Qilei Yin; Tong Wang;
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Effect of suction nozzle structure on reverse circulation performance of down-the-hole hammer drill bit

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