短語(yǔ)詞組短語(yǔ)wash -boring method 沖水鉆孔法rotary wash -boring equipment 旋轉(zhuǎn)式水沖鉆孔設(shè)備Wash Boring Method 水振沖countercirculation -wash boring method 反循環(huán)洗井鉆井法Boring wash 水沖鉆探 返回 wash boring