copperheadn.铜斑蛇；南北战争时同情南方的北方人coppern.铜；铜币；警察；紫铜色；有紫铜色翅膀的小蝴蝶vt.镀铜Copper-containing acid mine drainage含铜矿山酸性废水copper/aluminum alloy welding joint铜/铝合金焊接接头copper - silver polymetallic deposit成矿地质条件copper-steel compound conductive arm铜-钢复合导电横臂copper-bearing age-hardening steel含铜时效钢Copper-lead-zinc polymetal deposit铜铅锌多金属矿copper-bearing industrial wastewater含铜工业废水copper p-toluene sulfonate catalysis对甲苯磺酸铜催化剂Copper-containing nitrite reductases铜型亚硝酸还原酶copper-bearing age-hardening steels铜时效钢

1. The electrolytic copper foil production for printed circuit board in the world has experienced almost fifty years.
   印制电路板用电解铜箔产品在世界上已经历了近五十年的发展历程。