英语词汇“protection factor”的意思、释义、用法解释及翻译-春雷网

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词汇	protection factor
释义	Definition of protection factor in English: protection factor noun A measure of the extent to which something affords protection against the harmful effects of a particular phenomenon, based on a ratio of the effects experienced with and without protection; (sometimes) specifically = "sun protection factor". Origin 1950s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America. Definition of protection factor in US English: protection factor noun A measure of the extent to which something affords protection against the harmful effects of a particular phenomenon, based on a ratio of the effects experienced with and without protection; (sometimes) specifically = "sun protection factor". Origin 1950s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America.
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