名词
中文翻译：Unknown
同义词：
['closed-end valve', 'closed-circuit valve']
例句：
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1. The closed-type fuel valve is essential for safe operation of the engine.
闭式燃料阀对于发动机的安全运行至关重要。
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2. The engineers carefully inspected each component to ensure the closed-type fuel valve was functioning properly.
工程师们仔细检查了每个部件，确保闭式燃料阀正常工作。
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3. The closed-type fuel valve prevents air from entering the engine during startup.
闭式燃料阀在启动过程中防止空气进入发动机。