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.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。
4.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，在熔炉里对熔化的铁直接吹一吹空气，就会烧坏使铁变脆的杂质。