tail of comets
彗星的尾巴
以上为机器翻译结果，长、整句建议使用 人工翻译 。
DMA damage were detected by single-cell gel electrophoresis assay. After exposure the relative tail length of the comets and cells with DNA migration were increased.
采用单细胞凝胶电泳检测小鼠睾丸细胞DNA受损程度，显示DNA迁移细胞数和彗尾长度上升。
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