The cost for the deposition of the waste depends also upon the volume of the storage cavities and the maximum allowable radioactive concentration of the waste.

废料处理费用还取决于贮存空穴的容积和允许的废料最大放射性浓度。

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This paper evaluates the airborne radioactive concentration, dose-rate of internal and external exposure as well as purification mode and operating time of ven...

本文对燃料破损可能导致的气载放射性浓度、场所内、外照射剂量率进行了估算，同时对通风系统的净化方式、净化时间进行了评估。

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The radioactive concentration of lesion pixel depended on the pixel counts, the acquisition time and CF, and the relationship was expressed with an empirical formula.

②由图像像素的累积计数、 采集 时间及定标系数确定像素的放射性浓度 ，其关系可以一经验公式表示。

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For example, the new EPA guide refers to International Atomic Energy Agency guidelines that suggest intervention is not necessary until drinking water is contaminated with radioactive iodine 131 at a concentration of 81, 000 picocuries per liter.

FORBES: EPA Draft Stirs Fears of Radically Relaxed Radiation Guidelines