Copperin枸橼酸铁铵和铜制剂
coppern.铜;铜币;警察;紫铜色;有紫铜色翅膀的小蝴蝶vt.镀铜
copper excess铜质过剩
coppertoglassn.铜玻璃封接
copper powder铜粉,红铜粉
copper doping掺铜
copper blight铜色疫病
coppering bit铜焊头
copper-wiren.铜线;铜丝
Copper mining铜矿区
copper bronze古铜
copper-slug继电器的缓动铜套