名词
中文翻译：下抽力调节器
同义词：
['down draft controller', 'down draft regulator']
例句：
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1. The down draftporducer is used to control the airflow in the exhaust system.
下抽力调节器用于控制排气系统中的空气流动。
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2.The down draft porducer helps to maintain a stable temperature in the engine compartment.
下抽力调节器有助于保持发动机舱内的温度稳定。
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3. During startup, the down draft porducer is activated to prevent cold air from entering the engine.
启动时，下抽力调节器被激活，以防止冷空气进入发动机。