英语词汇“filter factor”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	filter factor
释义	filter factor filter factor [′fil·tər ‚fak·tər] (optics) The number of times the exposure must be increased when a filter is used on a camera, because the filter absorbs some of the light.
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