| 丁凤仙,高国贤,李勇,等.2015年平顶山市137台含密封源仪表防护现状调查分析[J].中华放射医学与防护杂志,2017,37(4):290-293.Ding Fengxian,Gao Guoxian,Li Yong,et al.Investigation and analysis of the protection status of 137 sealed source gauges in Pingdingshan city in 2015[J].Chin J Radiol Med Prot,2017,37(4):290-293 |