短語詞組短語bituminous surface course 瀝青面層surface course WESTBANK 面層semi rigid surface course 半剛性面層pavement surface course deflection 路面表面彎沉asphalt surface course construction 瀝青面層施工cement concrete surface course 水泥混凝土面層asphalt concrete surface course 瀝青混凝土面層penetration bituminous surface course 透水性瀝青面層surface course of track 跑道面層 返回 surface course