在环境辐射剂量的测定中，沙土标本与剂量计是经常采用的测试对象。
The soil samples and dose discs are used to determine in gauging environment radiation.
对大多数人来说，他们自然环境辐射剂量的一半以上来自氡—一种可聚集在家庭、学校和工作场所的放射性气体。
For most people more than half of their natural background radiation dose comes from radon, a radioactive gas that can accumulate in homes, schools and workplaces.
环境氡和氡子体连续测量是准确计算氡的辐射剂量、客观评价氡危害的前提。
The continuous measuring for environmental radon and radon progeny is the premise to calculate the radiation dose from radon precisely.
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