英语词汇“actinic focus”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	actinic focus
释义	actinic focus noun : the focus at which the chemically most effective rays as distinguished from the visually most effective are brought together (as by a lens) — called also chemical focus
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