英语翻译An average size for a heater room housing a gas-fired unit is 15 sq ft

英语翻译An average size for a heater room housing a gas-fired unit is 15 sq ft
英语翻译
An average size for a heater room housing a gas-fired unit is 15 sq ft

英语翻译An average size for a heater room housing a gas-fired unit is 15 sq ft
燃气炉式供暖房的平均面积为 15 平方英尺.