| 单词 | protection factor |
| 释义 | > as lemmasprotection factor protection factor n. 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) spec. = sun protection factor n. at sun n.1 Compounds 5a. ΚΠ 1957 Proc. National Acad. Sci. U.S.A. 43 760 There is an over-all protection factor for strontium 90 from topsoil to milk of about..10. 1960 Times Recorder (Zanesville, Ohio) 4 Sept. b7/6 The protection factor of the [nuclear fallout] shelter is said to be 200, which means that radiation exposure will be reduced to 1-200th of that absorbed by an unprotected person. 1974 Oakland (Calif.) Tribune 6 June 14 k/3 Top..brands in effectiveness against burning were PreSun and Pabanol, each having a protection factor of 17.6. 1994 Occupational Hazards Sept. 39/1 Workers have a false sense of security because these respirators are given higher assigned protection factors than they deserve. 2005 InStyle (Electronic ed.) June Sun-proof your clothes. Most clothing has a protection factor of between 5 and 9. < as lemmas |
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