英语词汇“vacuum 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	vacuum relay
释义	vacuum relay vacuum relay [′vak·yəm ′rē‚lā] (electricity) A sensitive relay having its contacts mounted in a highly evacuated glass housing, to permit handling radio-frequency voltages as high as 20,000 volts without flashover between contacts even though contact spacing is but a few hundredths of an inch when open.
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