结果表明针叶的有机自由基水平最能说明远紫外辐射剂量的积累效应。其次是叶绿体产生的O-·2 。
The results show that the cumulative effect of far_UV irradiation, is best indicated by the production of organic free radicals in the needles, O -· 2 production in chloroplasts is the next.
虽然UVB进入真皮的数量远少于UVA，但因其损伤强度大，且光老化是一个紫外线长期辐射累积的结果，UVB对真皮成纤维细胞造成的损伤也不容忽视。
Photoaging was a result of long-term ultraviolet accumulation and UVB could also produce a marked effect although its quantity was less than UVA into dermis.
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