The daughter nuclides of radon and thoron tend to become attached . 氡和钍射气的子体易被气溶胶吸附。
2.
The radioactive dust will contribute to higher levels of uranium and radon . 放射性尘埃会形成铀和氡的高值。
3.
Radon concentration in ground water was measured at 18 points including two continuous recording stations . 测量了包括两个连续记录台站在内共18个点的地下水的氡浓度。
4.
In addition, reference is made to the novel techniques of the determination of radon and its daughter products in the atmosphere . 此外，还介绍了一些新方法，例如测量大气中的氡及其衰变产物。
5.
Model pc - 2000 radonmeter for the activated charcoal method 2000型活性炭氡测量仪
6.
Standards for controlling radon concentration in dwellings 住房内氡浓度控制标准
7.
Study on the temporal change of radon concentration 空气中氡浓度时间变化规律探讨
8.
High buildings , construction material and its radon pollution 建筑材料与室内氡污染
9.
The application of radon measurement in coal mine 氡气测量在煤矿地质上的应用
10.
Worried about radon gas , worried about asbestos 担心氡气,石棉所带来的危害
