Several processes—melting, refining, homogenising—take place simultaneously in the 2000 tonnes of molten glass in the furnace.

熔炉里的2000吨熔融玻璃中，几个过程——熔化、精炼、均质化——在同时进行。

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The inventor Henry Bessemer discovered that directing a blast of air at melted iron in a furnace would burn out the impurities that made the iron brittle.

发明家亨利·贝塞默发现，在熔炉里对铁水直接吹一吹气，就会烧掉使铁变脆的杂质。

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Small particles of ash, for example, are normally removed by forcing the flue gases, as the fumes from the furnace are known in the trade, between electrically charged plates.

例如令烟道内的气体通过带有不同电荷的金属板从而去除一些灰尘颗粒，因为这些从熔炉散发出的浓密毒烟为业内所共知。

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