gas-fired furnace的用法和樣例：
例句
- My mother has a gas stove for cooking.
我媽媽有一個(gè)燒飯用的煤氣爐。 - The gas fire has been burning away all night.
煤氣爐燒了一整夜。 - In order to save energy, the high efficacy stored heat furnace used blast furnace gas is applied in Pingxiang Iron and Steel Co.
為了節能降耗，萍鄉鋼鐵棒材有限公司使用高效蓄熱式高爐煤氣加熱爐。
