名词
中文翻译：排放烟道
同义词：
['exhaust flue', 'exhaust duct', 'exhaust pipe']
例句：
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1. The factorydischarges a large amount of smoke into the air.
工厂向空气中排放大量烟雾。
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2.The exhaust flue is designed to remove harmful gases from the engine.
排气管设计用来从发动机中去除有害气体。
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3.The exhaust pipe leads directly to the roadside, where it can be easily cleaned.
排气管直接通向路边，可以很容易地清理。