1.
INVESTIGATION OF NATURAL RADIOACTIVITY LEVEL OF THE WATERS IN BAOTOU AREA
包头地区水体中天然放射性水平调查
2.
Analysis of natural radioactivity level of the typical fly ash from guizhou province
贵州典型粉煤灰天然放射性水平分析
3.
Determination of Uranium, Thorium and Potassium Elemental Concentrations in Surface Soils in Suzhou;
苏州市土壤~（238）U、~（232）Th、~（40）K天然放射性水平调查
4.
Natural specific activety in building materials and dose estimation
郴州地区建材天然放射性水平及其剂量估算
5.
INITTIAL SURVEY OF NATURAL RADIOACTIVITY LEVEL IN GRANITE RESOURCE IN HAMI AND TUOLI OF XINJIANG
新疆哈密、托里两地花岗岩建筑石材天然放射性水平初步调查
6.
Moreover, the monitoring findings achieved by the environmental protection departments over the years have proved that the natural radiation level in Tibet is within the standards specified by the state's radiation protection regulations.
环境保护部门多年监测结果证实，西藏环境天然放射性水平在国家辐射保护规定标准内。
7.
Estimation of Natural Terrestrial External Exposure Levels of Nuclides in Soils in Chengdu
成都市土壤天然放射性核素的外照射水平估算研究
8.
Natural Radioactive Nuclide Level of the Agricultural-animal Products and Annual Comunity Intake in Lanzhou City;
兰州市农畜产品天然放射性核素含量水平与公众年摄入量
9.
extinct natural radionucleus
消失的天然放射性核
10.
secondary natural radionuclides
次生天然放射性核素
11.
extinct natural radionuclides
消失的天然放射性核素
12.
induced natural radionuclide
感生天然放射性核素
13.
The investigation and analysis on natural radioactivity nuclide specific activity of cement product in china
我国水泥产品天然放射性核素比活度的调查分析
14.
Natural radioactivity contains a store of valuable information.
天然放射性包含着许多有价值的信息。
15.
The Monte Carlo Stimulation of Natural Radial γ Energy Spectrum;
天然放射性场γ能谱的蒙特卡罗模拟
16.
Crude Radioactivity Measure of Coal Dust Based on HPGe γ-ray Spectrometer
基于HPGeγ谱仪的粉煤灰天然放射性测量
17.
RADIOACTIVITY LEVEL SURVEY OF BEIJING AREA WATER
北京地区水中放射性水平的调查(1976—1979)
18.
Radioactire Level and Valuation of Drinking Water in County and Town of Liaoning Province
辽宁省县镇自来水放射性水平与评价