词语churn drill
解释舂钻机,冲击钻
词性名词
churn drill〔名词〕钢丝绳冲击式钻机,绳式顿钻钻机详细»
churn drill〔名词〕掸击钻详细»
churn drill〔名词〕绳式顿钻钻机详细»