“pressure vacuum valve”的概念、定义、翻译、参考文献-科学参考

单词	pressure vacuum valve
释义	pressure vacuum valve Encyclopedia 工学锅炉阀门释 pressure vacuum valve压力真空阀维护压力容器气压平衡，减少介质挥发的安全节能装置。由压力阀和真空阀两部分组成。又称呼吸阀、PV阀。
随便看	collecting terms collecting tubule Collecting Works on Tea collection collection analysis collection census collection classification collection custody and collection department collection development collection development policy collection digitization collection efficiency collection evaluation collection features Collectiong of Cantonese Opera Star collection growth collection lens collection management collection management area collection manager collection of academy Collection of Ancient and Modern Ballads collection of ancient and modern calligraphers Collection of Ancient and Modern Proverbs Collection of Ancient Prose and Poetry

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