copperasn.绿矾coppern.铜；铜币；警察；紫铜色；有紫铜色翅膀的小蝴蝶vt.镀铜copper linoleate亚油酸铜copper zinc cell铜锌电池copper tungstate钨酸铜copper carbenoid铜卡宾copper waterstop铜止水带Copper nanowires铜纳米线copper carbonate碳酸铜copper tin alloy铜锡合金copper materials铜物料copper coil tube铜管