这个词是什么意思？
Chemical or physical agents that protect the skin from sunburn and erythema by absorbing or blocking ultraviolet radiation.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D013473 · MeSH 2026。
Courtesy of the U.S. National Library of Medicine. Annual snapshot; later updates may not be reflected. NLM does not endorse this service.
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