英语词汇“frequency relay”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	frequency relay
释义	frequency relay frequency relay [′frē·kwən·sē ‚rē‚lā] (electronics) Relay which functions at a predetermined value of frequency; may be an over-frequency relay, an under-frequency relay, or a combination of both.
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