exploratory drilling

短語詞組

短語

• exploratory tunnel drilling method 勘探坑道掘進方法
• exploratory drilling rig [地質(zhì)]勘探鉆機
• advance exploratory drilling 超前鉆探
• round exploratory drilling 全年勘探鉆井
• success of detailed exploratory drilling 詳探井鉆探成功率
• year -round exploratory drilling 全年勘探鉆井
• success of initial exploratory drilling 預(yù)探井鉆探成功率
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