短語詞組短語curved prestressed concrete girder bridge 預應力曲線梁橋prestressed concrete continuous girder bridge 預應力混凝土連續(xù)梁橋prestressed concrete plate girder bridge 低高度預應力混凝土板梁prestressed concrete box girder bridge 預應力混凝土箱梁橋 返回 prestressed concrete girder bridge