铀

Based on the analysis results and the principle that the concentration of the contaminants in a mine varies in a constant ratio and the degree of their hazard varies in an arithmetic progression,the evaluating indicators were determined for the air quality in a uranium mine,and an evaluation model was proposed for the evaluation of the air quality in a uranium mine based on integrated scale index on ...

该模型克服了传统评价方法主要从辐射危害的角度进行评价的局限，能综合评价铀矿山井下空气的质量。采用该模型对某铀矿井4个用风点的空气质量进行了评价，获得了4个用风点空气质量综合评价等级和应采取的相应的对策。评价结果能为铀矿井通风系统的设计和空气质量的安全评价提供参考。

At the end, prospect of the development of the hydrometallurgy of uranium is discussed briefly.

对铀水冶科学技术的今后发展作了讨论。

To make an atom bomb we have to use uranium 235, in which all the atoms are available FOR fission.

制造原子弹必须用铀235，因为它的所有原子都可以裂变。

The first atomic pile constructedconsisted of about six tons of uranium.

已建造的第一个原子反应堆含有大约六吨铀。

In this paper, we introduce an experimental set-up, which is rebuilt on the basis of typeDMP-450 coater and applied to AVLIS(atomic vapour laser isotope separation).

1引言激光原子法分离铀同位素是目前世界上一些国家积极探索的、有前途的新课题。

High temperature evaporation of molten cavity heated by electron beam in crucible is one of the most important processes in the uranium cycling system in atomic vapor laser isotope separation.

电子枪加热坩埚熔池高温蒸发是原子蒸气激光同位素分离铀循环系统的一个重要环节。

All uranium atoms do not have the same atomic weight.

所有的铀原子并非都有相同的原子量。

The invention is suitable for the leaching exploitation field of uranium, copper, aurum, rare earth and so on.

适用于铀、铜、金、稀土等矿物的溶浸开采领域。

RG resistance is uranium metal plating on the top bar magnet, has excellent impact resistance characteristics and high voltage, high reliability, pulse load capability, low voltage coefficient of performance, widely used in communications equipment, high-quality power supplies and other areas .

RG 电阻是用金属铀镀于磁棒上面，有着极佳的耐冲击特性及耐高压，可靠性高、脉冲负载能力强、电压系数低等性能，广泛地使用于通讯设备、高质量电源等领域。

There are mineral oil, natural gas, uranium, iron, chrome, bauxite, barite, such as zinc.

矿产有石油、天然气、铀、铁、铬、铝土、重晶石、锌等。

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。