... synthetic radionuclides 人工放射性核素 natural radionuclides 天然放射性核素 primary radionuclides 原始放射性核素 ...
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extinct natural radionuclides 消失的天然放射性核素
secondary natural radionuclides 次生天然放射性核素
natural l radionuclides 天然放射性核素
This paper reports the methods and results of investigation of natural radionuclides in soil in Guangdong (include Hainan) Province.
本文报道广东省(本调查包括现海南省在内)土壤中天然放射性核素含量调查的方法和结果。
A report is made on the inspection results of the content of natural radionuclides of decorative stone and glazed tiles commonly used in Xianyang.
报道了咸阳市常用装饰石材及彩釉砖样品中天然放射性核素含量的调查分析结果，并据国家建筑材料放射性核素含量最新标准进行分类分析。
The specific activities of natural radionuclides in import granites of different producing area and different varieties have biggish differences with those in normal building materials.
结果：不同产地、不同品种的进口花岗岩石材样品中天然放射性核素的比活度与普通建筑材料比有较大差别。
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