siding
noun uk/ˈsaɪ.dɪŋ/ us/ˈsaɪ.dɪŋ/
(RAILWAY)
[ C ]（车厢不用时停靠的）侧线，旁轨
a short railway track connected to a main track, wherecarriages are kept when they are not being used
(MATERIAL)
[ U ] US壁板，墙板
material that covers the surface of the outer walls of a building, usually in sloping layers
vinyl/aluminum/wood siding 聚乙烯／铝／木墙板