焦炭炉

例句：

1. 1. The coal mine is located in the northern part of the country.
   煤矿位于该国北部。
2. 2. The coal-fired power plant produces electricity using coal as fuel.
   燃煤发电厂使用煤炭作为燃料生产电力。
3. 3. Coal mining has been a major industry in this region for decades.
   几十年来，煤炭开采一直是该地区的主要产业。