结论：PCF对小鼠胸腺淋巴细胞具有明显的辐射保护作用。

Conclusion PCF has significant radioprotective effects on UVB-irradiated murine thymocytes in vitro.

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目的研究甲醛和苯联合染毒对小鼠脾脏、胸腺淋巴细胞DNA和RNA合成的影响。

Objective To explore the effect of combined exposure of formaldehyde and benzene on DNA and RNA synthesis in spleen and thymic lymphocytes in mice.

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结果UV B辐照引起小鼠胸腺淋巴细胞凋亡，PCF能明显减轻uvb辐射损伤引起的细胞超微结构改变。

Results Apoptotic thymocytes were observed after UVB irradiation. The ultrastructural damages of the cells induced by UVB irradiation were reduced by the treatment of PCF.

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