英语词汇“standing valve”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	standing valve
释义	standing valve standing valve [′stand·iŋ ′valv] (petroleum engineering) A sucker-rod-pump (oil well) discharge valve that remains stationary during the pumping cycle, in contrast to a traveling valve.
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