copperingn.铜包皮
coppern.铜;铜币;警察;紫铜色;有紫铜色翅膀的小蝴蝶vt.镀铜
copper oxide/alumina oxide氧化铜/氧化铝
copper dodecylbenzenesulphate十二烷基苯磺酸铜
copper and molybdenum deposit铜钼矿
copper ore concentrate market铜精矿市场
copper oxide/porous carbon铜氧化物/多孔炭
copper mineral dressing plant铜选厂
Copper - sulphur separation铜硫分离
copper resistance thermometre铜电阻温度计
copper dialkyldithiocarbamate二烷基二硫代氨基甲酸铜