放射性同位素

It is based on the Seebeck effect of semiconductor. It has many advantages such as quiet, small size, light weight, no mechanical moving parts, long life, high reliability, no pollution and so on.

利用工业废热、放射性同位素、烃燃料等作为热源制成的半导体温差发电装置已广泛应用于军事、远距离通讯、远程空间探测器等特殊的领域中。

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。

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

Technetium are radioactive isotopes, the longest life expectancy is 943Tc and 9843Tc.

锝都是放射性同位素，寿命最长的是943Tc和9843Tc。

Iodine radioctive isotope; Tomography, X-rays computer; Brachytherapy, carcinoma, non small cell lung; Therapeusis; Contrast research

碘放射性同位素体层摄影术，X线计算机，近距离放射疗法癌，非小细胞肺药物疗法对比研究

The structures of the thermoelectric couple and generator were described in detail in this paper. Also, the performance of the Radioactive Isotope Thermoelectric Generator was introduced, which has been used in space power, for example SNAP-7B RTG, SNAP-10A, GPHS-RTG.

本文对温差电偶的结构和温差发电器的构造作了详细的叙述，并且，对应用于航天的放射性同位素温差发电器作了介绍，比如SNAP-7B RTG、SNAP-10A系统、通用热源热电转换器。

Tritium is one of the mildest radioactive isotopes.

氚是最和缓的放射性同位素之一。

Their Volcanology, Geochemsitry and Petrology shore based analytical and experimental laboratories include the following equipment for geochemical analysis: thermal ionization mass spectrometers, radioactive isotope tracer and dating facilities, an electron microprobe and an X-ray fluorescence spectrometer.

他们的实验研究设备有：热电离大型分光计、放射性同位素跟踪仪、地质年龄测定器、电子微探针、x射线荧光分光计。

Methods:The nine Chinese caprines were divided into three groups.The 20mm left tibia diaphyseal defect of every caprine was made of and fixed with plate.

中国青山羊 9只随机分 3组制备单侧胫骨 2 0mm的骨膜与骨缺损，钢板内固定，术后放射性同位素、放射学检查、组织学方法评价骨缺损自行修复情况。

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。