炼状闪电 chain lightning

闪速炼铜厂 flash copper smelter

闪速吹炼 flash converting

闪速熔炼 [冶] flash smelting

闪速熔炼法 flash smelting process

闪速熔炼炉 flash smelting furnace

铜闪速熔炼 copper flash smelting

闪速冶炼斗提机 flash smelting bucket elevator

铜闪速熔炼过程 copper flash smelting process

中心旋涡柱闪速熔炼 central swirling column flash smelting