铀

The principles, means, examples and newly-developed technologies about radioactive pollution decontaminating in decommissioning of uranium mines and mills are introduced in this paper.

介绍了铀矿冶退役的放射性污染去污的原则、方法、实例及新开发的去污技术，并对我国铀矿冶退役的放射性污染去污在方法和途径上作了探讨。

In order to study the reaction kinetics of uranium with CO or CO 2,uranium samples of different forms are obturated in reaction vessels and then CO or CO 2 is filled in. Gases in vessels are analyzed at different storage time.

在一定温度下，将不同形态的铀样品密闭贮存在容器中并充入一定压力的高纯CO或CO2 气体，通过定期测量贮存容器中气体组成，初步研究了铀与CO或CO2 的反应动力学。

Electrochemical studies are performed to investigate the corrosion resistance of uranium niobium alloy before and after passivated with carbon monoxide.

采用电化学方法研究了铀铌合金经CO( 0 3MPa)钝化前后的电化学耐蚀性能，并用X射线光电子能谱分析了铀铌合金经CO钝化后表面层的组成。

Uranium weapons are armor-piercing munitions made of waste uranium-238, an extremely hard metal left in great quantities from the production of reactor fuel and nuclear weapons.

铀武器的穿甲弹药制造的废物铀-238 ，是一个非常硬的金属留在大批量从生产的反应堆燃料和核武器。

There are some isomeric compounds of hydroxypyridinone. The compounds of 2-hydroxy-6-pyridinone have been used to dyestuff and pesticide widely. The compounds of 3-hydroxy-2-pyridinone and 3-hydroxy-4-pyridinone are paid attention to, because they are very useful heavy metal chelations. Especially, they are wonderful candidate medicament for the toxicosis of depleted uranium, so they can settle the DU jeopardize to the people.

羟基吡啶酮化合物有不同的同分异构体，2-羟基-6-吡啶酮已被广泛用于染料和农药行业，而3-羟基-2-吡啶酮和3-羟基-4-吡啶酮也引起了人们的重视，因为这两种异构体的化合物是非常理想的重金属络合剂，尤其重要的是，它可作为解决贫铀中毒的候选药物，有望解决战争中由于贫铀中毒带来的危害。

In order to overcome disadvantages of conventional leaching technique such as high energy consumption and low productive benefit, and get better utilization of uranium resource, the study on uranium extraction from certain alkaline uranium ore with heap leaching process have been carried out according to the characteristics of the ore such as high content of carbonate and low grade of uranium.

为了克服常规工艺高能耗、低效益的缺点，充分利用铀矿资源，针对某碱性铀矿石碳酸盐含量高、铀品位低的特点，开展了堆浸法提取铀的研究。

The heat-producing power of weapon-grade plutonium, weapon-grade uranium and depleted uranium per kilogram were calculated through simulation and dynamic decay cascade, the regression line was fitted and analyzed. The temperature fields of the nuclear explosive device raised by Steve Fetter were analyzed according to the simulation results of the heat-producing power of the exothermic materials. The hypothetical models of the nuclear explosive device were modified according to the normal disposal method in industry manufacture, and thermal stress distribution was simulated with the information processed before.

通过级联衰变动力学计算得到每千克武器级钚、武器级铀及贫化铀的放热功率，并对仿真结果进行拟合分析；选取其最大值对Steve Fetter提出的公开核装置假想模型进行温度场数值仿真；根据工业生产实际对Steve Fetter提出的公开核爆炸装置假想模型进行修订，并对其进行热应力仿真分析。

Influence of vacuum heat-treatment on the corrosion resistance of uranium surface overlaid with graphite at 100 ℃ is studied.

为了提高铀的抗氧化腐蚀能力，利用石墨的粘附特性，在铀表面涂覆一层石墨，并进行真空热处理，在100 ℃条件下对热处理后的样品进行氧化腐蚀试验。

Low rotten bituminous coal (jet coal, it glues coal to be and weak to glue coal), natural radioactive level lower,( 238U: 33.2- 50.0Bq/kg , 232Th: 52.5- 54.4Bq/kg , 226Ra: 30.6- 56.5Bq/kg ), obviously lower than the brown coal than activity, and the uranium , radium which the companion grew is in a basic balance, uranium , thorium are also in a basic balance.

低变质烟煤（包括长焰煤、不粘煤和弱粘煤）天然放射性水平较低，（238U：33.2～50.0Bq/kg、232Th：52.5～54.4Bq/kg、226Ra：30.6～56.5Bq/kg），比活度明显低于褐煤，且伴生的铀、镭基本平衡，铀、钍亦基本平衡。

The decontaminating experiments of radioactive surface contamination are carried out with polymer mambrane decontaminating material which can be denuded at a uranium mill and with chemical decontaminating agent at a uranium mine.

介绍了在某铀水冶厂厂区内用可剥离聚合物成膜去污材料和在某铀矿用化学去污剂分别进行的放射性表面污染去污试验，讨论了试验结果，对我国铀矿冶放射性表面污染去污提出了建议。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。