电池性能随着空气流量增大而上升，空气剂量比系数要大于3；
The performance increased with the increase of air flux, the air stoichiometric ratio should be higher than 3.
尽管释放出的空气包含有轻微的放射性物质，但我们相信这是最小的剂量，而且对人体健康不会产生影响。
And although the air being vented out does contain some minimal radioactive material, however, we believe that it is a minimal level that does not affect human health.
报导安徽省天然辐射的空气吸收剂量率和饮食中天然放射性核素的浓度。
This paper reports absorbed dose rate in air for natural radiation and concentration radionuclides for food.
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