copperumn.铬铜合金
coppern.铜;铜币;警察;紫铜色;有紫铜色翅膀的小蝴蝶vt.镀铜
copper sesquioxide[化] 三氧化二铜
copper anode plate铜阳极板
Coppersmith Barbetn.赤胸拟啄木(五色鸟科)
copper alloy steel铜合金钢
copper power cable铜电源电缆
copper consumption铜损耗
Copper-gold ores铜金矿
copper-manganese锰铜
copper - bismuth铜-铋
copper welding rod铜焊条