名词
中文翻译：旅行阀门
同义词：
['travelling valve', 'travel valve例句：1. The travelling valve is responsible for controlling the flow of air in the engine.（旅行阀门负责控制发动机中空气的流动。）']
例句：
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1. The travelling valve is responsible for controlling the flow of air in the engine.
旅行阀门负责控制发动机中空气的流动。
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2.The engineers were tasked with replacing the old travelling valve with a new one.
工程师们被指派用新的旅行阀门替换旧的。
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3. The valve was designed to prevent leaks during long-distance travel.
这个阀门设计用来在长途旅行中防止泄漏。