氡

例句与用法

Relationship between radon in soil and indoor
土壤氡与室内氡浓度关系的研究
Standard methods for radon meafuremetn in environmetal air
环境空气中氡的标准测量方法
Standard test method for radon in drinking water
饮用水中氡的标准试验方法
How can the damage of radon to human beings be reduced
怎样预防室内氡气对人体的危害？
Indoor radon pollution and t1 accumulating detectors
居室氡污染与热释光累积测量法的应用
The comparison between two radt radon detectors
两台测氡仪的比对分析
Passive measurements of radon - part 1 : track etch method
氡的无源测量.第1部分:记录槽蚀刻法
Analysis of the features of digitized air radon in huailai no . 4 well
怀4井数字化气氡特征分析
Standard for controlling radon and its daughters in underground space
地下建筑氡及其子体控制标准
Radon and radondaughter meters and monitors ? generalrequirements
氡及氡子体测量仪与监测仪一般要求