放射性的

The comparison between thermal and fast ADS demonstrate that the fast ADS has large power output, less minor actinide production and small fission products poisoning effect compared with thermal system.

从快堆和热堆的比较可知，ADS的快堆具有输出功率大、长寿命超铀放射性废物的累积水平低、裂变产物对反应堆反应性和能量增益影响小等优点。

Composition and radioactivity of natural radioactive nuclides of dry and wet fly ash in eight coal-fired powder plants in Sichuan province and Chong Qing city were detected, meanwhile the related synthetic utilization situations were investigated.

对四川省8个大、中型火力发电厂排出的干/湿粉煤灰中天然放射性核素的组成和含量进行了测定和分析；并调查了我省粉煤灰的综合利用情况。

They are supergene minerals occurring in oxidized zones of uranium deposits and assuming green-yellow colors. This kind of minerals can be used as one of the mineral indicators in search for uranium deposits. They are mainly composed of ~(3-) and ~(2+), in which As and U are known as poisonous and harmful elements causing environmental pollution.

铀酰砷酸盐矿物是主要产出于铀矿床氧化带中比较特征的黄绿色表生矿物，是寻找原生铀矿床的重要矿物学标志，化学组成主要是[AsO4]^3-和[UO2]^2 ，其中As和U均是对环境造成极大危害的有毒或放射性有害元素。

Excavations of the ditch have recovered antlers that were left behind deliberately and it was by testing their age through radio carbon dating we now know that the first henge was built over 50 centuries ago, that is about 3,100 BC.

经放射性碳年代测定法测试在挖掘好的沟渠里留下的用以修缮的鹿角，得知第一个圆形石结构始建于5000年前，即公元前3100年。

Rnsults There were brain areas that distributing of radioactivity diminution in interictal SPECT in all 69 cases ,and there were brain areas distributing of radioactivity heighten in ictal SPECT in all 69 cases.

结论伽玛刀治疗脑软化灶导致的癫痫是有效的，而且无痛苦、无出血、无感染、无死亡、术后恢复快，其中以局限性发作效果最好；对脑软化灶导致癫痫的患者行SPECT检查，只有发作间期放射性分布减低和发作期增高在同一脑区才被确认为致痫灶；以上方法可明显缩小靶区体积。

It is note that the dose can approach to 1.38×10~(-4)Sv based on LUDEP program when adult man chronic inhalants 50 years.

对吸入不同放射性核素所致的年待积有效剂量分析发现，~(210)Pb的贡献最大为9.085×10~(-5)Sv，而~(87)Rb的贡献可以忽略。

9 healthy adult Holstein cows were selected as experimental cows and they were divided into 3 groups according to different milk lactations. Individual tracking method was used to observe and record the amount of Diptera insects. The blood was took on the tail vein under the aseptic condition and then the serum was extracted. The level of ACTH, COR, PRL, GH and NE in the serum were detected by the method of radioactive immunoassay method and fluorescence spectrophotometry.

方法］选择9头成年健康的荷斯坦奶牛作为试验牛，按不同泌乳阶段分3组，采用个体跟踪法观察并记录侵袭试验牛双翅目昆虫的数目，自尾静脉无菌采血，提取血清，采用放射性免疫法和荧光分光光度法测定血清中AGTH、COR、PRL、GH和NE的水平。

Radioembolization of liver cancer has been proven to be an effective therapy innuclear medicine. The yttrium-90 glass microspheres has been used to treat both primaryand metastatic liver tumors in clinic with encouraging results.

放射性栓塞治疗肝癌被认为是一种有效的医疗手段，~(90)Y标记的玻璃微球已经应用于临床治疗原发性和转移性肝癌并取得了良好的治疗效果。

What did the addition of thymidine to the

在你的实验中加入放射性标记的胸腺嘧啶的作用是什么？

Due to its exceptional structure, theNASICON-type zirconium phosphates exhibit excellent properties of ionicconduction, low thermal expansion and capability of ion exchange, etc. As aresult, they are one kind of outstanding carriers for antimicrobial, catalysts,nuclear radwaste and so on.

得益于其结构的特殊性，这一类材料具有良好的离子导电、低热膨胀和离子交换等性能，是抗菌剂、催化剂和固定核废料放射性同位素等极好的载体。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。