名词
中文翻译：燃气式空气加热器同义词
同义词：
['gas furnace', 'gas heater']
例句：
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1. This gas-fired air furnace is very efficient in heating homes.
这种燃气式空气加热器在供暖方面非常高效。
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2. The gas-fired air furnace is the best choice for heating large spaces.
燃气式空气加热器是供暖大型空间的最佳选择。
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3. The gas-fired air furnace has a low operating cost and high energy efficiency.
燃气式空气加热器的运行成本较低，能效较高。