短語(yǔ)詞組短語(yǔ)Thin steel arch trough board 薄鋼拱形槽板Arch board painting 拱板油畫floor arch board covering 地板護(hù)蓋prestressed arch board 預(yù)應(yīng)力拱板the prestressed concrete arch board 非預(yù)應(yīng)力砼拱板the two -arch board 雙折板拱floor arch board battery cover 蓄電池檢查蓋 返回 arch board