短語(yǔ)詞組短語(yǔ)balanced activity drilling fluid 反相乳化鉆井液non balanced drilling 非平衡鉆進(jìn)balanced -pressure drilling 平衡壓力鉆井balanced drilling techniques 平衡鉆進(jìn)pressure balanced drilling techniques 壓力平衡鉆進(jìn)pressure balanced drilling bumper sub 壓力平衡式鉆井震擊器under -balanced drilling technique 欠平衡鉆井技術(shù)air under -balanced drilling technique 空氣欠平衡 返回 balanced drilling