sunscreen protective factor index

In preparations for protecting the skin from the sun (using sunscreens), the ratio of the amount of exposure needed to produce a minimal erythematous response with the sunscreen in place divided by the amount of exposure required to produce the same reaction without the sunscreen. This index assesses the ability of sunscreens to block (short-wavelength) ultraviolet B rays but does not measure the protective effect of sunscreens against (long-wavelength) ultraviolet A radiation. See: erythema doseSee also: index

单词	sunscreen protective factor index
释义	DictionarySeeSPF sunscreen protective factor index sunscreen protective factor index In preparations for protecting the skin from the sun (using sunscreens), the ratio of the amount of exposure needed to produce a minimal erythematous response with the sunscreen in place divided by the amount of exposure required to produce the same reaction without the sunscreen. This index assesses the ability of sunscreens to block (short-wavelength) ultraviolet B rays but does not measure the protective effect of sunscreens against (long-wavelength) ultraviolet A radiation. See: erythema doseSee also: index LegalSeeIndexFinancialSeeindex
随便看	uppri uppricked up promoter mutation upprop uppropping rameshwari nehru ramesses ramesses 2 ramesses i ramesses ii ramesses iii ramesses the great ramessides rameswaram island ramet ramex ram expansion unit ramey, puerto rico ramey, samuel ramf ramfc ramfjord index teeth ramfm ram, force, thrust, etc. something down somebody's throat ramfs