upf50+和upf100+的区别 - 百度知道
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upf50+和upf100+的区别UPF50+和UPF100+的区别1. 什么是UPF？UPF（紫外线防护系数）是一种用于衡量服装防护能力的标准。它与SPF（防晒指数）类似，但UPF是衡量服装对紫外线的防护能力，而SPF是衡量防晒霜的防护能力。
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