名词

1. 火炉;熔炉
A furnace is a container or enclosed space in which a very hot fire is made, for example to melt metal, burn rubbish, or produce steam.

2. 火炉般的地方;极闷热的地方
If you say that a place is a furnace, you mean that it is very hot there.

1. an enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.