| 单词 | sun protection factor |
| 释义 | sun protection factor (once / 844237 pages) n WORD FAMILY sun protection factor USAGE EXAMPLESIn any case, self-tanning products are not a substitute for sun blockers, because their sun protection factor, or S.P.F., is minimal and short-lived. New York Times(Oct 24, 2016) Sun cream with a high sun protection factor should be applied regularly - particularly if children are in water. BBC(Jul 20, 2016) The level of protection against UVB rays is measured by something called SPF, or sun protection factor. Washington Times(Jul 01, 2016) n the degree to which a sunscreen protects the skin from the direct rays of the sun Syn|Hyper SPF degree, grade, level a position on a scale of intensity or amount or quality |
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