percussive rotary drilling

短语词组

短语

• percussive e rotary drilling 冲积钻钻探
• percussive -rotary wire-line drilling 绳索取心冲击回转钻进
• auger -percussive-rotary drilling 螺旋冲击回转钻进
• percussive rotary drilling technology 冲旋钻井技术
• pneumatic percussive rotary drilling 风动冲击回转钻进
• rotary percussive drilling 回转冲魂进
• rotary y percussive drilling 回转冲魂进
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