uranium radium series是什么意思

用法例句

This paper emphatically analyses the distribution of airborne radiocactive anomalies in Wudaoliang area,eastern Chaidam basin,as well as the nature of these anomalies,locations,uranium and radium contents and uranium-radium equilibrium in anomalous areas.

本文着重分析了柴达木盆地东部五道梁地区航放异常的展布特征、异常性质、产出位置 ,异常区铀、镭含量及铀镭平衡状态。