Charged 不能理解为 充电.在这的意思应该是装载或注满.
the powder-producing process is similar to a foundry operation in which high-purity virgin metals are charged to a melting furnace in preweighed batches to be processed at predetermined heating rates and times
这个粉末生产工艺就像铸造作业一样,以预定的加热率和时间,将一批批已预称好的原生金属将熔炉注满.
【英语牛人团】