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

单词	pressure-regulating valve
释义	pressure-regulating valve [`presh·ǝr ¦reg·yǝ´lād·iŋ ´valv] ^ENGINEERING A valve that releases or holds process-system pressure (that is, opens or closes) either by preset spring tension or by actuation by a valve controller to assume any desired position between full open and full closed.
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