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ultraviolet light source
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辐射波长在10~380纳米的光源。根据生物效应又可细分为紫外A段(黑斑320~380纳米)、紫外B段(红斑275~320纳米)、紫外C段(杀菌200~275纳米)和仅能在真空中传播的真空紫外(10~200纳米)的光源。
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ultraviolet light source
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urban-rural gradient
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