melt downreduce by melting 熔化 * They melted down the lead and poured it into moulds. 他们把铅熔化，倒进模子里。 * The state offers fair prices for scrapiron to be melted down for reuse. 国家以合理的价格收购废铁以使回炉后重新使用。melt down熔化;熔毁：Workers melt down iron or copper at a temperature of several hundred degrees and solidify them in the casting moulds.工人们在数百度的温度上使铁或铜熔化，然后使它们在铸型中凝固。 |