1. Their first job was to rewire the whole house and install a new furnace. 他们的第一份工作是给整个房子重新布线，并安装一个新火炉。
2. This room is as hot as a furnace. 这个房间热得像火炉一样。
3. 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。
4. Shenwu puts up the initial investment to install a heat exchanger that preheats the air going into the furnace, slashing the client's fuel costs. 申武投资初期安装了一个热交换器，将进入炉内的空气预热，降低了客户的燃料成本。
5. 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。
