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比放射性 [bǐ fàng shè xìng]
specific radioactivity
- 用这种方法测量出的精确度要比放射性技术的高。
Exact dates for sites can be calculated and the method is more accurate than radiometric dating techniques. - 经营柏崎核电厂的东京电力公司说，流入日本海的水所含的放射性比最初估计的高1.5倍。
The Tokyo Electric Power Company, which operates the nuclear plant in Kashiwazaki, says the level of radiation in water that leaked into the Sea of Japan was one-and-a-half times higher than initially estimated. - 在辐射源周围地区，环境γ辐射空气吸收剂量率、气溶胶或沉降物总β放射性比活度、水和动(植)物样品的放射性核素浓度均在天然本底涨落范围内。
In the areas surrounding the radiation sources, the air absorption dosage rate of the ambientγradiation, the specific activity of the totalβradioactive of the aerosol or the settling matter, and the radioactive nuclide concentration of the water and animals (plants) samples are all within the increase and decrease ranges of the natural background levels.
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