1·The earthquakes occurred during radon content dropping.
地震发生在氡值下降的过程中。
2·The emanation scintillation method to determine the radon content is the principal way.
射气闪烁法是测氧的主要方法。
3·Results of the experiment show that rock rupture may be considered as one of the causes of variation of Radon content before the occurrence of an earthquake.
实验结果表明，可以认为岩石破裂是引起地震之前氡含量异常的原因之一。
4·Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.
在世界各地，空气中都存在氡气，其浓度取决于土壤中差别极大的铀含量。
5·More recently, researchers have sought to associate electromagnetic fields, the radon or hydrogen content of the soil and seismicity patterns with impending earthquakes.
最近，研究者们试图将电磁场以及土壤中氡和氢的含量与将要发生的地震类型联系在一起。
6·The content of radioactive radium in mineral was 19 times higer than that in rock and served as a chief source of radon.
矿石样品放射性镭含量比岩石样品高19倍，为井下氡气的主要来源；
7·Methods Based on soil radon diffusive theory, a model including the influences of soil radium content, emanation coefficient, soil porosity and moisture saturation on radon exhalation was established.
方法通过对氡在土壤中扩散理论的分析，建立土壤氡析出率数学模型，该模型考虑了土壤的镭含量、射气系数、孔隙度和含水饱和度等因素对氡析出率的影响。
8·The only input factors of the simplified model were soil radium content, dry bulk density, water content and soil texture type and the output was soil radon exhalation rate.
模型只需输入土壤样品镭含量、容重、质量含水率和质地名称，就可以输出该样品的氡析出率理论值。
9·It is shown that the radium content is not completely relevant to radon exhalation rate from some building material.
结果表明，建筑材料中镭含量与氡析出率之间并不完全相关。
10·The moisture content distribution and relationship between moisture content and radon emanation rate on the tailings surface in Hengyang Uranium Mill are described.
描述了中国核工业集团公司衡阳铀厂尾矿库滩面的含水量分布，以及含水量与氡析出率的关系。