Meaning: n. the degree to which a sunscreen protects the skin from the direct rays of the sun.
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31, Link State algorithm called the shortest path first SPF ( Short Path First ) algorithm.
32, Our mineral - based Sunblock SPF 20 goes and protects skin against sunburn without the use of sun screens.
33, Conclusion The abnormal expressions of MMP-9 and TIMP-2, DNA heteroploid and higher SPF are involved in the progression and heterogeneity of gastric carcinoma.
34, Retains SPF after 80 minutes of activity in the water or sweating.
35, Method: We adopted germfree caesarean section and artificial suckling to make CV New Zealand Laboratorial rabbit biology-cleansing and cultivate SPF New Zealand Laboratorial rabbit.
36, The aneuploidy and SPF index are also the important factors which can influent the prognosis.
37, Every girl wants to have snow - white skin, so high SPF sunblock have in the summer.
38, Objective To systematically control and manage the equipment in a large - scale SPF laboratory animal environmental facilities.
39, Conclusion:The factor of liver-stagnation and spleen-deficiency could enhance the SPF of H22 ascitic tumor cells and promote the proliferation of tumor.
40, In this research,[http://sentencedict.com/spf.html] the light stability of several blends of sunscreen agents with different mixed proportions is compared under the same SPF value by ultraviolet spectrophotometry.
41, The ability of a sunscreen to protect the user from UVB is defined as its Sun Protection Factor (SPF).
42, An early version was called merely SPF and introduced in MVS system.
43, Take the number of SPF and multiply it by 10. That is the time that if you were under perfect conditions, you'd be safe from the sun's rays.
44, SPF lumber is a distinctly white wood, with very little color variation between springwood and summerwood.