铀的

What is more, the agency reported a big discrepancy (about 30%) between the amount of uranium Iran had earlier said it was producing and the amount now stockpiled.

更重要的是，机构还指出在伊朗早先宣布的铀生产数量与目前的储量之间存在巨大差异（约30%）。

The high rotten coal (including the anthracite and meager coal ) radioactive level is relatively low,( 238U: 29.1Bq/kg , 232Th: 25.9Bq/kg , 226Ra: 37.5Bq/kg), obviously lower than the radioactive levels of the brown coal and bituminous coal, and fluctuating range little relatively stable until Lincang uranium germanium colliery HeKai Tian little dragon's pool power plant make , investigate than right far correctly, prove natural radioactive nuclide (238U , 232Th , 226Ra ) than activity transformation in the course of utilizing and give locality radiate influence that environment bring.

高变质煤放射性水平相对较低，（238U：29.1Bq/kg、232Th：25.9Bq/kg、226Ra：37.5Bq/kg），明显低于褐煤和烟煤的放射性水平，且波动范围较小、相对稳定通过对临沧铀锗煤矿田和开远小龙潭电厂作出调查比对，说明了天然放射性核素（238U、232Th、226Ra）比活度在利用过程中的转移以及给当地放射环境带来的影响。

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。

Yellow-cake uranium could be nosed as far away as Niger, and Saddam Hussein's connections to al-Qaeda were as odorous as a Texas feedlot.

即使远在尼日尔，他们也能嗅到铀精矿的气息；而萨达姆侯塞因与基地组织的关系更是如德州牧场的浓烈气味一样刺鼻。

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。

A simple, fast and selective spectrophotometric method for the determination of trace nitrate ion in uranium dioxide was developed, based on the fade of indigo carmine with nitrate ion in sulfuric acid medium.

基于硝酸根离子对靛蓝二磺酸钠的褪色反应，建立了一个简单、快速、选择性好的二氧化铀产品中硝酸根离子的测定方法。

It created a blast equivalent to about 13 kilotons of TNT (the U-235 weapon was considered very inefficient, with only 1.38% of its material fissioning), The radius of total destruction was about 1.6?km (1 mile), with resulting fires across 11.4?km?(4.4 square miles).

它产生的爆炸相当于13000吨梯恩梯炸药（铀-235武器被认为效率很差，仅有1.38%的材料裂变），总的破坏半径大约1.6公里（1英里），导致11.4平方公里（4.4平方英里）的火区。

She claimed the White House was unaware of the CIA's doubts about whether Saddam Hussein had tried to buy yellowcake uranium in Niger, for example, despite the fact that her office had received two memos on the subject and a call from the CIA director.

例如她声称，白宫未曾注意中情局质疑萨达姆是否试图在尼日尔购买黄铀，事实上她的办公室就收到过两份备忘录，记录了该主题的以及一通来自中情局局长的电话。

He refuses, however, to own up to known imports of equipment for enriching uranium (another potential route to a bomb) that scuppered the very first Yongbyon deal.

然而，他拒绝承认外界已知的铀浓缩（制造核弹的另一个潜在途径）设备进口的事情，这就使宁边协议一开始就完蛋了。

In the Purex process, the separation of plutonium from uranium is achieved by using reductants which can quickly and quantitatively reduce Pu to Pu.Up to now the reductant U-N2H4 is still used widely for separation of Pu from U in the rep...

目前动力堆乏燃料后处理中广泛采用的钚还原剂还是由肼支持的四价铀，而醛、肼、羟胺类有机无盐还原剂在Purex流程中的应用目前还停留在实验室研究阶段。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。