1) a bear and her young
熊及其崽子
2) radon and its daughter elements
及其子体
1.
The radon and its daughter elements are the decay products of the radioactive elements such as uranium and thorium and the important carcinogenic factor of causing the lung cancer.
氡及其子体是铀、钍等放射性元素产物，是引发肺癌的重要致病因子。
5) On the Origin of "Tu Zai Zi
"兔崽子"考
6) radon and its daughters
氡及其子体
1.
Analyses on anomaly of radon and its daughters above sandstone type uranium deposit;
砂岩型铀矿床上氡及其子体异常分析
2.
This paper has studied the characteristics and formation mechanism of the anomalies caused by radon and its daughters over the sandstone uranium deposit,described the recoil of the Alpha particles,the cluster effect and the natural electric field over the sandstone uranium deposit,and analyzed geological characteristics of the sandstone uranium deposit.
分析了砂岩型铀矿床上氡及其子体异常特征及其形成的机理,介绍了砂岩型铀矿床上氡及其子体经α衰变后产生的α粒子的反冲现象、团簇理论和自然电场,分析了砂岩铀矿床的地质特点、U-Ra平衡、磁化率、自然电位的变化等,对砂岩铀矿勘查的氡及其子体异常解释有一定的指导意义。
3.
Results Radon and its daughters' concentrations in the air of the main workplaces were higher than those of the auxiliary workplaces(P<0.
目的了解某铀矿井下氡及其子体在10年间不同年份、不同季节、不同场所的分布规律,以便有针对性地采取井下降氡措施。
补充资料：A1-Cu-Co合金中十次对称准晶单晶体及其衍射图
A1-Cu-Co合金中十次对称准晶单晶体及其衍射图
‘ Al Cu—Co合金中十次对称准晶堕晶体e1)及其衍射圈(z) 中国科学盹垒禹研览听供稿
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条