只有人们把防晒霜涂得很厚时，15倍的防晒系数才能够起到全天保护的作用。
Factor 15 offers all-day protection only if it is applied thickly.
防晒面霜固然有吸收紫外线以保护皮肤不受侵害的作用，然而在效果方面，却不可抱持过度的期望。
While there is sun cream to protect skin from UV absorption against the role, but in effect, but can not hold excessive expectations.
研究辣木油对小鼠抗紫外线损伤的保护作用，为开发防晒护肤品提供实验依据。
The protection effect of moringa oil against ultraviolet rays radiation damage on mice for the development of skin protection cream was studied.
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