查询词典 uranium

The determination of free acidity with the presence of rare ,uranium,thorium andiron,etc is studied.

研究了在稀土，铀，钍及铁等元素存在下自由酸度的测定，标准回收完全，适用于稀土料液自由酸度的测定

The main paragenetic minerales are: uranophane, uranium blacks, autunite, meta-torbernite, microquartz, quartz, ankerite, calcite, fluorite, hydromica, pyrite, galena, sphalerite, and chalcopyrite.

矿化作用共可分为八个阶段，同位素研究结果表明，矿床中的铀主要来自岩浆溶液，部分轴来自围岩——侏罗系长石石英砂岩。沥青铀矿的同位素年龄为108—109百万年。

NATO ambassadors have rejected calls for moratorium on the use of antitank weapons containing depleted uranium.

北约各国大使们拒绝了暂停使用含有贫铀的反坦克武器的呼吁。

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。

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。

But an unexpected fact was noted: certain minerals (pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.

但是一个意外的事实引起了我的注意：某些矿物质(沥青铀矿物质、铜铀云母或钙铀云母)的活性比根据其铀或针含量所判断的要高。

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。