铀的

In-vivo neutron and gamma spectra of depleted uranium sphere and vanadium sphere under central D-T neutron source were measured,with a 18 mm×20 mm stilbene crystal detector, at 7,10,13,16,19,22 cm away to the center in 45° direction in depleted-uranium sphrer, and 1.8,4.8,8.3 cm away to the center in the 0° direction in V sphere.

为获得介质内中子能谱及伴生γ能谱的实验数据，在中心D-T中子照射下，用18 mm×20 mm的茋闪烁体探测器，测量了与D+束成45°角的水平方向距球心7、10、13、16、19、22 cm位置处贫化铀球介质内的中子能谱和伴生γ能谱，以及钒球内与D+束成 0°角、距离球心1.8、4.8和8.3 cm处的中子能谱和伴生γ能谱。

The basic situation of 3 decommission uranium tailings impoundments and 1 large open pit in Germany is introduced, and some special successful engineering measures are reported in detail, including the wastewater treatment, the covering of exposed uranium tailings beach, the stability of dam slope, the back filling of open pit and so on.

介绍了德国正在进行退役治理的3个铀尾矿库和1个大型露天采坑的基本情况，并对已采用的一些成功的工程措施作了比较详细的说明。

A memo published in Britain by theTimes, if authentic, shows Iran in 2007 about to embark on a four-year set of experiments, picking up on related past work, to develop a neutron initiator, or bomb trigger, containing uranium deuteride, or UD3 (a compound used by Pakistan in its bombs).

英国泰晤士报刊登的一个备忘录显示，2007年，伊朗曾准备上马一项为期4年的核试验，重启原来相关的工作，即开发含有氘化铀（UD3，巴基斯坦核弹中所使用的化合物）的中子起爆器——一种核弹触发装置。

The back extraction of Am 3+,Pu,UO 2+ 2 and TcO - 4 with high concentration nitric acid, oxalic acid, sodium carbonate, ammonium carbonate respectively from different 30% TRPO/kerosene systems are studied.

研究了硝酸、草酸、碳酸钠和碳酸铵对 4种不同来源的TRPO/煤油中Am3 +，Pu ，UO2 2 +和TcO-4的反萃，观察了碳酸钠溶液反萃铀时的乳化现象，比较了上述 4种TRPO的红外光谱、裂解色谱。

They especially want answers about studies that appear to show as yet undisclosed uranium-related work, high-explosive testing of triggers for nuclear bombs, a plan for an underground nuclear-test shaft and efforts to redesign the nose-cone of Iran's far-flying Shahab-3 rocket to accommodate a nuclear warhead.

IAEA也特别关注下面一些问题的答案：秘密进行的铀关联工程；击发核弹的高爆试验；地爆竖井计划；伊朗是否对&流星3&型远程地对地导弹头锥改进，使之具有配载核弹头的能力。

The permeability of ore mass has a great influence on the leaching period of heap leaching and the leaching efficiency,hence the uranium ore s with high content of clay is difficult to acidic heap leaching.

矿堆的低渗透性能是局限矿石浸出周期及金属浸出率的最主要因素之一，因此，长期以来，高含泥量的铀矿石一直是酸法堆浸提铀技术的应用禁区。

The bogus memo claimed that 9/11 hijacker Mohammed Atta had received training in Baghdad but also discussed the arrival of a "shipment" from Niger, which the Administration claimed had supplied Iraq with yellowcake uranium — based on yet another forged document whose source remains uncertain.

假的备忘录称， 9 / 11劫机犯穆罕默德阿塔接受了培训在巴格达，但还讨论了到来的&货物&从尼日尔，而政府当局声称向伊拉克提供铀黄饼-的基础上的又一伪造文件，其来源仍然不明朗。

Exceptionally strong long-term demand continues to exert upward pressure on the spot uranium price as each pound held by sellers is considered more valuable with every new buyer that enters the market.

异常强劲的长期需求，不断施加压力的铀现货价格为每磅所持卖家被认为是较有价值的，与每一个新的买主进入市场。

We killed some mice at the day 6th , the others were continue to expose to formaldehyde and observe their estrous cycle. HE staining was used to study the pathological changes happened in ovarian tissue. Uranium acetate and lead acetate double staining was used to study the ultrastructure of oocyte. E2 and LH level in blood serum was measured by radioimrnunoassay reagent kit.

第6d处死一批小鼠，用HE染色观察小鼠卵巢组织的病理改变，用醋酸铀—醋酸铅双重染色电镜下观察小鼠卵母细胞超微结构的损伤；用GSH测定试剂盒测定小鼠卵巢组织中的GSH含量；用E_2和LH放射免疫分析试剂盒分别测定小鼠血清中E_2及LH水平；采用超排卵法，计数超排卵数并收集卵母细胞，于油镜下观察生殖细胞遗传物质的损伤。

The relationship between mantle fluid and U ore-forming was studied preliminarily,according to the results,the author considered theΣCO_2 of mineralizer and heat source came from mantle,which is because upwelling mantle forced by crustal extention and deep-seated faulting produced melt blending with lower crust,during this process,mantle provided the heat and releaseΣCO_2 to crust through outgassing.U mainly came from mantle-curst fluid formed by mantle-curst melt blending and the wall rock during fluid uplift.H_2O mainly generated from mantle fluid and the wall rock during mantle fluid uplift,and partly from atmospheric water in the late period of ore-forming.

初步探讨了地幔流体与铀成矿作用的关系，认为矿化剂∑CO_2和热源来源于地幔，是地壳拉张和深大断裂活动导致部分熔融地幔上涌，与下地壳产生壳幔混熔作用，在混熔过程中提供热量和向地壳&去气&释放∑CO_2；U主要来源于壳幔混熔形成的壳幔混合流体和流体上升途经的围岩；H_2O主要来源于地幔流体、地幔流体上升途经的围岩，在成矿晚期有部分来源于大气降水。

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。