查询词典 uranium-actinium

This paper briefly reviews the research history of the lung cancer due to Radon and its progenies in the past hundreds years,then presents the relationship between risk of lung cancer and radon and its progenies inbreathed by uranium miners.

简要回顾氡致肺癌的长时间认识过程和研究历史，简述了当年铀矿工人和矿工吸入氡及其子体与肺癌发病率的关系，指出环境中氡的危害。

A method for determination of high dissolved oxygenin in-situ leaching uranium process is studied.

研究了地浸采铀工艺中高浓度溶解氧的测定方法。

The interlayer oxidized zone and the concentration of uranium has the typical characters of low temperature geochemical processes. Interlayer oxidized zone can be defined from the bedrock to horizon C under hypergene weathering by such parameters as chemical metamorphosing、index of chemical weathering and index of mineral chemical differentiation.(2)Major elements can be divided into sensitive group、 active、 weak active and inert groups according to chemical metamorphosing parameter and fractional migration potential. For major elements of multivalent in the active group( Fe_2O_3、 FeO) and U, the migration and concentration trend in interlayer oxidized zone is apparent.

层间氧化带形成和铀富集成矿是地下水在低温、常压、开放体系、非平衡状态对围岩长期作用结果，元素含量及其有关地球化学参数在氧化带不同亚带中表现出一定的变化和分布规律，除Fe_2O_3、FeO、Fe_2O_3／FeO外其它元素含量及其参数只在统计学上呈现规律性变化，而不具分带意义，具有典型的低温地球化学作用特点；利用风化作用化学蚀变参数PC值、化学风化指数ICA和矿物化学分异指数ICV将层间氧化带作用界定于表生风化作用的基岩到母质层阶段。

In order to study the migrating rule of contaminants, a steady two dimentional mathematical model is adopted to simulate the groundwater flow field around the uranium miffing dam, and the model is solved with Galerkin finite element method.

为了研究污染物在地下水中的迁移规律，采用二维稳定流数学模型对铀尾矿库周围地下水流场进行概化，并用Galerkin有限元法对模型进行了求解。

There are many uranium mineralized and anomaly occurrences with great prospect in this basin .

通过多年在该盆地的地质工作，在盆内发现了众多的铀矿化异常点，呈现良好的找矿前景。

Calculating results for fixed position of uranium mineralizing range in Dingshan area is in accord with the results of geological drill in this area.

计算得到的北准顶山预测区铀矿化地段空间定位范围与实际钻探验证结果具有较好的一致性。

Therefore, studies on mineralizing hydrogeochemistry have become technique keys of inquiring to ore-forming condition of sandstone type uranium deposit.

因而，成矿水文地球化学研究就成为探讨该类型铀矿床形成条件的技术关键。

Basic status on waste rock pile s of an uranium mine in Jiangxi province before its decom- missioning is introduced.

在介绍废石场现状的基础上，针对废石含硫化物的特点，阐述了废石场的治理措施。

Iran mulls fuel swap, not to send uranium

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Iran has become even noisier about its desire to go on enriching uranium.

伊拉克甚至闹着渴望要继续他们的铀浓缩。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。