铀的

This atom,with 92 electro i ing about the closely packed and complex nucleus,is the element uranium,which seems to be the most complicated of the natural atoms.

这一有着92个电子围着又密集又复杂的原子核旋转的原子，就是元素铀。它似乎是天然原子中最复杂的原子了。句中with引出的是一个介词复合结构，作定语，修饰atoms。

Contaminant cations such as calcium,magnesium,barium,strontium,and radium and anions such as fluoride ,nitrate,fulvates,humates,arsenate,selenate,chromate ,and anioic complexs of uranium can be removed from water by using ion exchange or adsoption onto activiated alumina.

具有污染能力的像Ca，Mg，Ba，Sr，Ra的阳离子，和像氟化物，硝化物，黄酸物，腐质酸物，砷酸盐，硒酸盐和铬酸盐的负离子以及像铀一样的负离子复合物可以通过离子交换和离子吸附从水中排除。

Iranian Foreign Minister Manouchehr Mottaki said his country will not send its partly enriched uranium abroad to be turned into material for medical research, but added that Tehran might allow its nuclear material to be reprocessed inside Iran, the semiofficial ISNA news agency reported.

据半官方的伊朗学生通讯社报道，伊朗外交部长Manouchehr Mottaki说，他的国家不会将其丰富的铀材料输往国外以被用于医疗研究的材料，但补充说德黑兰可能允许其核材料在伊朗内部进行再加工。

Based on the above studies and integrated with aerial radioactivity data, the authors identified and mapped such spectral features of main ore-forming factors of uranium deposits as ore-controlling faults, hydrothermal alterations and plutons, and evaluated geological application potentials of CBERS-02B remote sensing imagery in the Taoshan granite-type uranium deposit.

在此基础上，以江西桃山花岗岩型铀矿田为试验区，结合航空放射性数据，开展了基于02B星遥感数据的控矿断裂带、热液蚀变带及主要成矿岩体等铀成矿要素的光谱特征识别与提取，并对该数据的地学应用潜力进行了评价。

As a result of a However, as a result of nuclear reactions (which might be caused by the bombardment of atoms by protons, neutrons or other light particles), nuclei can be produced in an excited or unstable condition in which one or a number of nucleons are raised to an excited state.

运 行过程中，二氧化铀芯块需要承受结构变化，主要是由于高的运行温度和高温度梯度造成的，同时也是长期受到辐照的结果。

A complex brownish - black mineral,UO2,forming the chief ore of uranium and containing variable amounts of radium ,lead,thorium,and other elements.

沥青铀矿黑褐色的合成矿，UO2，主矿为铀，还包括不定数量的镭、铅、钍和其他元素枪管的一端装有镭。

Uranium mineralization occurs when interlayer water with oxygen and uranium enclosed in primary red beds meet with reduction fluids along fractures.

矿化成因为原生红层中封存的含氧含铀层间水同沿断裂进入的还原溶液互相作用的结果。

PWR of Daya Bay Unit 1 is selected as a referenced reactor type,and a new assembly including 36 thorium dioxide elements and 4.2% enriched 235U is designed without change of physical dimension and structural materials of assembly and core.

以大亚湾第1机组压水堆为参考堆型，不改变反应堆栅元、组件和堆芯的结构与几何尺寸，设计出含36根钍棒、4.2%235U富集度的新型含钍组件，并对含钍组件和3.2%富集度的铀组件进行中子学计算和分析。

In this case the geologists drilled into the stalagmites and estimated their age from the way that uranium decays into an isotope of thorium.

地质学家在石笋上钻孔，使用铀衰变成钍的同位素的方法确定它们的年龄。

Such fast neutron s have little chance of being captured by the fissible uranium.

这种快速运动的中子被可裂变的铀捕获的机会很少。

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。