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关注：1
2013-05-23 12:21
求翻译：SPF如何是算出来的？正常人晒红的时间是15分钟，涂防晒霜后晒红时间为150分钟，那么它的SPF=10.是什么意思？ 待解决
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- 离问题结束还有
SPF如何是算出来的？正常人晒红的时间是15分钟，涂防晒霜后晒红时间为150分钟，那么它的SPF=10.
问题补充： |
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2013-05-23 12:21:38
spf how is calculated? The normal drying time of red is 15 minutes, sunscreen sun red time is 150 minutes, then it's spf = 10.
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2013-05-23 12:23:18
How is SPF calculated? Normal results of the Red Cross for 15 minutes, and the sunscreen time to Red Cross success after 150 minutes, then it's SPF = 10.
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2013-05-23 12:24:58
How is SPF calculates? The normal person exposes to the sun the red time is 15 minutes, after spreads the sun block lotion to expose to the sun the red time is 150 minutes, then its SPF=10.
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2013-05-23 12:26:38
How SPF is calculated? Red is 15 minutes in normal subjects, painted red after the sunscreen time of 150 minutes, then the value of SPF=10.
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2013-05-23 12:28:18
正在翻译，请等待...
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