“金属的”用英语怎么说？

一辆载满废金属的卡车掉货了。A lorry piled with scrap metal had shed its load.燃烧的金属的味道刺激着他的嗅觉。The scent of burning metal assailed his nostrils.金属的膨胀与收缩the expansion and contraction of the metal...