词语冲钻
解释churn drill
churn drill〔名词〕钢丝绳冲击式钻机,绳式顿钻钻机详细»
churn drill〔名词〕舂钻机,冲击钻详细»
churn drill〔名词〕掸击钻详细»
churn drill〔名词〕绳式顿钻钻机详细»
冲钻jumper bar;percussion drill;ram chisel详细»
冲钻impact drill sinker drill详细»
冲钻sinker详细»
冲钻ram chisel;sinker;sinker drill详细»
冲钻flush drilling详细»