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- natural uranium concentrate 天然铀浓缩物
- INTERNEXCO GMBH deals in Uranium hexafluoride, Uranium conversion as well as in Uranium concentrate. INTERNEXCO GMBH 是一家现代化的、靠的产品供应商，这家供应商从事铀转换、变换,铀浓缩物的制造、售。请您访问我们的主页，垂询当前的产品系列和服务。
- Th has been produced via a multinucleon transfer reaction by 60MeV/u 18 O ions bombardment of natural uranium. 利用 6 0MeV/u的18O离子束轰击天然铀靶 ,通过多核子转移反应生成重丰中子核素2 37Th ,由多步快速放射化学分离方法从被照射过的靶物质中分离出钍元素。
- In this paper the natural uranium fuel Cycle and currently developed advanced CANDU fuel cycles in the near future are described. 介绍CANDU 堆的天然铀燃料循环以及最近开发的适合未来近期的先进燃料循环。
- The required permission or approval of the energy audit, including coal, oil, natural gas, nuclear power for electricity and natural uranium, and other outside projects. 按规定权限核准或者审核能源，包括煤炭、石油、天然气、电力和用于核发电的天然铀等境外的投资项目。
- Such 'noise'is undesirable in the analysis of low uranium concentration. 这种“噪音”在分析低含量铀时应当避免。
- The CANDU core calculations show that the transition from the natural uranium (NU) to RU or SEU can be completed without any change of the reactor core structure and the operation mode. 通过对后处理回收铀(RU)、SEU堆芯物理特性的分析可知，在堆芯结构及运行方式不作重大改变的情况下，即可完成从NU到RU或SEU的过渡，因而这两种先进燃料循环策略具有重大的经济效益和吸引力。
- From preliminary evaluation and calculation, it was shown that MOXnuclear fuel consisting of depleted uranium enrichment tailings (0.25% 235U) andplutonium (their ratio 99.5%:0.5%) could replace natural uranium in CANDU reactorto sustain chain reaction. 经过初步验算，得出了用235U含量为0.;25%25的贫化铀浓缩残渣和钚组成MOX核燃料（其重量比为99
- In this paper, nuclear fuel cycle issues, including the amount of natural uranium resource, separative work and nuclear fuel for PWR power plant, together with spent fuels, separated... 随着核电规模的扩大,核电站运行所需要的天然铀和产生的核废物都将增加。
- In this paper, nuclear fuel cycle issues, including the amount of natural uranium resource, separative work and nuclear fuel for PWR power plant, together with spent fuels, separated. 为了保障我国核电的可持续发展,必须建设配套的核燃料循环设施。
- The measurement methods of uranium concentrations in irradiated fuels by isotopic dilution mass spectrometry are described. 介绍了用同位素稀释质谱法测量辐照元件铀含量的方法。
- Operating conditions including RF power, carrier gas pressure, model of nebulizer, Uranium concentration of sample, dwell time, etc are optimized. 对高频发生器入射功率、载气压力、雾化器类型、最佳铀含量范围、通道停留时间、数据采集时间和测量数次等进行优化，得到了优化的操作条件。
- Natural uranium heavy water reactor 天然铀重水反应堆
- Results showed that uranium concentration is closely related with the organic matter, and the organic matter in uranium ore is mainly in the form of humic acids adsorption and humate. 铀矿石中腐殖酸及其组分的分离实验数据进一步证实了腐殖酸,特别是其组分富啡酸与后生砂岩铀成矿富集作用的密切联系。
- Because of the inherent flexibility of nuclear fuel cycle in CANDU reactor, the transition from the nature uranium to the recycled uranium(RU) can be completed without any changes of the structure of reactor core and operation mode. 由于CANDU堆对核燃料循环的固有灵活性 ,堆芯结构及运行方式不需作重大改变 ,即可完成从天然铀到RU的过渡。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
