放射性

The paper expounds the sedimentology theory of paleoflood and the formation of siack water deposits, and demonstrates the field and experimental characters of slack water deposits.

并介绍了放射性同位素测年法等古洪水平流沉积物的主要测年方法。

Slack water deposits are indicators of water level and age of paleoflood. They can be identified using Quaternary Period geology and hydrology, and can be aged using radioactive isotopes or other methods.

平流沉积物是洪水水位和发生年代记录的载体，利用第四纪地质学和水文学可以把它发掘出来并用放射性同位素或者其它断代方法测定它发生的年代，再通过断面恢复，进行流量推求，这就是古洪水研究。

It is prohibited to discharge radioactive waste liquid by using soakaway, seepage pit, natural crevice, karst cave or by other means prohibited by the State.

禁止利用渗井、渗坑、天然裂隙、溶洞或者国家禁止的其他方式排放放射性废液。

Ernest Rutherford and Frederick Soddy were working out the nature of radioactivity.

是卢琴福和索迪揭示了放射性的奥秘，发表了元素的嬗变理论。

Academic achievement:(1) early study of the electromagnetic wave transmitting and receiving;(2) found that there is penetration of uranium weak penetration of the α and β two kinds of radiation;(3) and Soddy worked together to propose release of radioactive atoms can be α or β atom into another element.

学术成就：（1）早年研究电磁波的发射和接收；（2）发现铀中有穿透力弱的α和穿透力强的β两种辐射；（3）和索迪合作提出放射性原子可以通过放出α或β变成另一种元素的原子。

What stands out as really important is that at McGillUniversity, Ernest Rutherford and Frederick Soddy were working out the nature of radioactivity.

真正凸现出重要性的是 1903年 Ernest Rutherford 和 Frederick Soddy 在 Mxxxxll 大学揭示了放射性的本质。

What stands out as really important is that at McGill University, Ernest Rutherford and Frederick Soddy were working out the nature of radioactivity.

真正凸现出重要性的是1903年Ernest Rutherford 和Frederick Soddy 在McGill 大学揭示了放射性的本质。

What stands out as really important is that at McGill Uniersity, Ernest Rutherford and Frederick Soddy were working out the nature of radioactiity.

真正凸现出重要性的是 1903年Ernest Rutherford 和Frederick Soddy 在Mxxxxll 大学揭示了放射性的本质。

Thyroid neoplasms; Tumor cells, cultured; Sodium iodide symporter; Gene therapy; Iodine radioisotopes

甲状腺肿瘤肿瘤细胞，培养的钠碘转运体基因疗法碘放射性同位素 NIS基因甲状腺细胞腺相关病毒癌细胞系制备

What factors can influence the sorption properties of the soil? And what is the sorption mechanism?

哪些因素可影响土壤对放射性元素的吸附，吸附机理是什么？

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。