求翻译：化妆品大多涂擦在人的皮肤表面，与人的皮肤长时间连续接触。配方合理、与皮肤亲和性好、使用安全的化妆品能起到清洁、保护、美化皮肤的作用；相反，使用不当或使用质量低劣的化妆品，会引起皮肤炎症或其他皮肤疾病。因此，为了更好地研究化妆品的功效，开发与皮肤亲和性好、安全、有效的化妆品，有必要了解有关的皮肤科学。是什么意思？

The cosmetics are mostly rubbed in the surface of human skin and human skin for a long time continuous contact. Reasonable formula, with skin affinity, use safe cosmetics can play a clean, protect, and beautify the skin effect; On the contrary, improper use or use of poor quality cosmetics can cause

Most cosmetics are rubbed in the skin surface of the skin, and long hours. With the Skin recipe reasonable, pro-and-good, using a secure, cosmetics can be a clean, protect, and beautify the skin; on the contrary, improper use or use of poor quality cosmetics, cause skin inflammation or other disease

The cosmetics mostly spread scratch in human's skin surface, contacts continuously with human's skin long time.The formula reasonable, with the skin endophilicity good, the use security cosmetics can play cleanly, the protection, beautifies the skin the role; On the contrary, uses does not work as o

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