名词
中文翻译：后座阀门
同义词：
['back-seated valve', 'back-seated throttle']
例句：
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1.The back-seated valve was designed to improve fuel efficiency.
后座阀门的设计是为了提高燃油效率。
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2. The back-seated valve is responsible for controlling the flow of air into the engine.
后座阀门负责控制空气进入发动机的流动。
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3.The back-seated valve is a crucial component in the engine's operation.
后座阀门是引擎运行中的关键部件。