短語(yǔ)詞組短語(yǔ)prestressed concrete drilled caisson 預(yù)應(yīng)力管柱drilled caisson pile 鉆孔灌注樁underwater drilled caisson grouting 水下鉆孔樁灌注drilled -in caisson 鉆地沉箱 返回 drilled caisson