名词
中文翻译：空气阀
同义词：
['air vent', 'air control valve', 'air pressure relief valve']
例句：
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1. The airvalve is used to regulate the flow of air in the engine.
空气阀用于调节发动机中的空气流动。
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2. The air valve was designed to prevent overheating of the engine.
空气阀被设计用来防止发动机过热。
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3. The air valve is located at the bottom of the exhaust pipe.
空气阀位于排气管的底部。