名词
中文翻译：真空阀
同义词：
['vacuum valve', 'vacuum relief valve例句：1. The forevacuum valve is used to prevent air from entering the system during operation.（真空阀用于在操作过程中防止空气进入系统。）']
例句：
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1. The forevacuum valve is used to prevent air from entering the system during operation.
真空阀用于在操作过程中防止空气进入系统。
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2.The forevacuum valve was designed to improve efficiency and reduce maintenance costs.
真空阀的设计旨在提高效率和减少维护成本。
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3.The forevacuum valve was tested under various conditions to ensure its reliability and safety.
真空阀在不同条件下进行了测试，以确保其可靠性和安全性。