英语词汇“prefocus lamp”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	prefocus lamp
释义	prefocus lamp prefocus lamp [prē′fō·kəs ‚lamp] (electricity) A light bulb whose filaments are precisely positioned with respect to the lamp socket.
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