名词
中文翻译：废气
同义词：
['exhalation', 'exhaust']
例句：
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1.The factory produces a lot of exhaust gas during the operation.
工厂在运行过程中产生了大量的废气。
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2. The exhaust gas from the car engine is harmful to the environment.
汽车发动机产生的废气对环境有害。
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3. The exhaust gas was released into the air, causing a strong smell.
废气被排放到空气中，产生了强烈的气味。