Objective To find out the genotoxicity of stream and side stream of the cigarette.

目的确定香烟主流烟雾与侧流烟雾对小鼠的遗传毒性效应及两者遗传毒性的差别.

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Many filters of this type, when they have a separate outlet forflush a side stream.

渗透材料有很多种, 当他们拥有各自的排污口时,水会立刻涌出.

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