查询词典 uranium-actinium

Uranium in the aquatic environment : proceedings of the International Conference Uranium Mining and Hydrogeology III and the International Mine Water Association Symposium, Freiberg, Germany, 15-21 September 2002 / Broder J.

水生环境中的铀：第3届国际铀矿开采和水文地质学国际会议及矿坑水协会讨论会会议录。

While the uranyl ion and the hydronium ion tend to dissolve in water, the effect of ancient underground water leads to the redistribution and movement of the elements of uranium and kalium, the ratio of thorium to uranium and kalium are changed.

为了需求古地下水的运移规律及对寻找矿床的作用，利用放射性元素钍稳定性的特点，建立了钍归一化判断的数学模型。

Utilities have been somewhat lackadaisical about uranium pricing because they've been getting Russian uranium on the cheap.

美国的公用事业已经有点lackadaisical约铀价格，因为他们已经得到俄罗斯的铀就便宜。

They provide not only the migration pathway for uranium metallogenetic fluids, but also the space for uranium deposition.

在吐哈盆地和鄂尔多斯盆地的勘查实践发现，结构和规模适中的大型骨架砂体是砂岩型铀矿的储层，它不仅能提供铀成矿流体的运移空间，同时也为铀矿的储存提供了空间。

Owing to the fact that uranium is 106~107 higher than that of neptunium ,it is extremely difficult to remove uranium from neptunium without any loss of neptunium ,either from the theoretical calculation or from practical experience .

不论从理论计算上，还是从实际的工作经验上，两种待分离的元素在数量级上相差10~6～10~7，要将其中含量高的元素除去，而微量元素不损失是很困难的。

All the methods used now have a common technical difficulty: The presence of large amount of uranium makes unacceptable interferences to the determination of neptunium. A separation procedure is absolutely necessary to separate neptunium from uranium completely.

国内一直没有一个比较理想的准确、灵敏的方法，解决铀产品中微量镎的测定问题，主要原因是现有的方法存在一个共同的技术难点：常量的铀对微量镎的测定干扰很大，必须要将常量铀与微量镎定量分离。

The thesis focuses on the study of the reactions of hydroxyurea, a novel salt free agent, with uranium, neptunium and plutonium in order to investigate the possibilities of its application in the Purex process(1B) for uranium and plutonium separation.

本论文重点研究了一种新型无盐试剂—羟基脲与铀、镎、钚相互作用的化学，旨在研究这种新型无盐试剂在Purex流程铀、钚分离段(1B)中应用的可能性。

It is more practical to obtain one uranium product and one uraniumplutonium mixture product through partial separation of uranium and plutonium.

系统分析了用稀硝酸反萃分离萃入30％TBP／煤油中的铀钚的工艺，分析了各操作变量的影响，结果表明用稀硝酸反萃分离铀钚是可能的，铀钚部分分离得到有机相铀产品和水相铀钚混合物产品的工艺较为现实可行。

Study also shows that pitchblende coexists with pyrite in the cavities of organic fragments in uranium-bearing zones, and absorbed uranium α traces are found on the surface and around pyrite.

对鄂尔多斯盆地东胜地区和吐哈盆地十红滩地区砂岩型铀矿的岩石学特征、地质构造、含矿建造与古水文地质条件及铀矿的成矿特点等进行了综合分析与研究。

With the geological-economic evaluation program for pithead heap-leaching mining uranium deposits developed by the authors and the data of column-leaching tests and the geological resrver, the geological-economic evaluation is made to the residual geological reserves of both Lujing and Huangfengling deposit, and the geological reserves of Yangjiaonao deposit of the depleted mines in Lujing uranium ore-field, central-southern China.

采用自主研发的坑口堆浸地质经济评价程序，利用室内柱浸工艺实验数据和矿床地质资源数据，对鹿井铀矿田危机矿山鹿井、黄蜂岭矿床的剩余地质资源及羊角脑矿床的地质资源进行了坑口堆浸地质经济分析。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐