短語(yǔ)詞組短語(yǔ)prestressed concrete drilled caisson 預(yù)應(yīng)力琯柱drilled caisson pile 鑽孔灌注樁underwater drilled caisson grouting 水下鑽孔樁灌注drilled -in caisson 鑽地沉箱 返回 drilled caisson