名词
中文翻译：未燃烧的气体
同义词：
['unburned gas', 'unburned air', "unburned steam例句：1. The engine was running on unburned gas.（发动机是用未燃烧的气体运行的。）2. The car's exhaust pipe was filled with unburned gas.（汽车的排气管里充满了未燃烧的气体。）3. The firefighters had to vent the unburned gas from the building.（消防员不得不从建筑物中排出未燃烧的气体。）"]
例句：
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1. The engine was running on unburned gas.
发动机是用未燃烧的气体运行的。
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2. The car's exhaust pipe was filled with unburned gas.
汽车的排气管里充满了未燃烧的气体。
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3. The firefighters had to vent the unburned gas from the building.
消防员不得不从建筑物中排出未燃烧的气体。