鈾分離 的英文怎麼說

中文拼音 [yóufēnlí]
鈾分離 英文
uranium separation
  • 鈾 : 名詞[化學] （放射性金屬元素） uranium （u）
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  1. The parent uranium has been partitioned from its decay products.

    鈾母體與其衰變產物分離。
  2. Back extraction by hno3 - hf and back extraction by concentrated hnch after lower the concentration of organic phase are studied, the method of back extration by hnorhf can not be used to icp - ms, because some zirconium is hydrolysis when hf is removed by heat. however, the method of back extraction by concentrated nitric acid after lower the concentration of organic phase can be used to icp - ms, the recovery is 93. 2 %, rsd % is 5. 24 %, the decontamination factor of uranium is 3. 2xl04, the detection limit of zirconium is 0. 04ng / ml. the method of tta extracting trace zirconium in uranium is firstly used to icp - ms, the result is satisfied, it can be used to determine zirconium in uranic production quickly and veraciously

    本文通過研究hno _ 3 - hf反萃和稀釋有機相後用濃hno _ 3反萃這兩種分離方法，認為hno _ 3 - hf反萃由於在加熱去除hf時酸度不易控制，導致鋯的部分水解，因而此方法不宜用於icp - ms中，然而稀釋有機相後用濃hno _ 3反萃法用於icp - ms測量中，全程回收率為93 . 2 ，相對標準偏差為5 . 24 ，鈾的一次去污因子為3 . 2 10 ~ 4 ，鋯的測定下限為0 . 04ng / ml ，本文首次將tta萃取分離鈾中鋯用於icp - ms測量中，結果令人滿意，此方法適用於快速、準確測量鈾產品中微量鋯。
  3. It can determine the elements in water. when tta is used to extract zirconium in uranium, the combination of zirconium and tta is very strong, the concentrated acid of nitric acid and hydrochloric acid can not destroy their combination

    用tta萃取分離鈾、鋯時， tta對鋯的螯合作用很強，硝酸和鹽酸的濃酸溶液並不能破壞它們之間的整合，即對鋯的反萃取非常困難。
  4. Standard practice for the ion exchange separation of uranium and plutonium prior to isotopic analysis

    同位素分析前鈾和鈈離子交換分離的標準實施規程
  5. Standard test method for isotopic abundance analysis of uranium hexafloride by multi - collector, inductively coupled plasma - mass spectrometry

    多收集器感應耦合等離子質譜法分析六氟化鈾同位素豐度的標準試驗方法
  6. As the chart shows, the amount of potentially weapons - usable nuclear material ? either highly enriched uranium or separated plutonium ? under inspection has increased far faster than the funds available for safeguarding it

    如表所示，經檢查可能用於武器製造的核原料? ?高濃縮鈾，或者是分離后的鈈? ?的數量比用於保障措施的資金量增長更快。
  7. Iran, he said, had achieved its aim of running 3, 000 uranium - enriching centrifuges and would add a new cascade every week

    他說，伊朗已經實現了計劃，運作了3000臺用於鈾濃縮的離心分離機，並且每周都會有一批新機器投入運作。
  8. Because the concentration of zirconium in uranium has large ranges, from 1. 50xlo ' 6 - 3. 8g / gu, not only how to decrease the remainder of uranium to eliminate its determinate effect but also how to acquire higher recovery of zirconium is considered, so the method of silica gel, the method of tbp levextrel resin chromatography, the method of tta chromatography and the method of tta extraction are compared. then tta extraction is chosen to acquire the ideal separation purpose. compared with icp - ms and icp - aes, xrf has characters of high repeatability, stability, low cost, high concentration elements analysis, the ability to determinate solid sample and having comprehensive practicability, but xrf has lower sensitivity, so how to increase the concentration of the sample to acquire better precision is a difficult problem, the optimum of operating condition : the integral time of spectral lines is 60s, the integral time of background lines is 20s, the voltage of xrf is 50kv, the electric current is 50ma

    由於鈾中鋯的含量范圍很廣，從1 . 50 10 ~ （ - 6 ） 3 . 8g / gu ，在分離和測量時，既要考慮盡量地減少鈾的殘留量以消除鈾對鋯測量產生的影響，又要獲得鋯的理想的回收率，因此本文在分離方法的選擇上比較了硅膠吸附分離法， cl - tbp萃取色層法， tta萃取色層法和tta萃取分離法的優缺點，認為tta萃取分離法可以達到理想的分離效果。
  9. International exchange and technical cooperation on decommissioning disposal of uranium mine and mill facilities

    滲析法從鈾溶液中分離硫酸的進一步探索
  10. This effort may have been a " scam " operation, and there is no credible evidence al - qa ida actually acquired the uranium. al - qa ida has been the victim of other nuclear " scams " in the past, but it probably has become sensitized to such operations in recent years, in part due to media coverage of nuclear smuggling and scam operations

    的調查結果認為，伊朗未報告鈾化合物的進口和化學轉換，從經幅照的鈾靶中分離出鈈及使用離心機和激光濃縮鈾等情況，也未提供有關其眾多的燃料循環設施的設計情況。
  11. Nuclear energy - measurement of radioactivity in the environment - water - part 2 : measurement of the concentration of uranium in water by inductively coupled plasma atomic emission spectroscopy

    核能.環境中放射性的測量.水.第2部分:感應耦合等離子體原子發射光譜法測量水中鈾的濃度
  12. There are distinct changes about shifts or intensity in bulk plasmon, surface plasmon, and interband electron transitions losses as a result of oxidation of specimens, and adsorption and oxidation processes can be studied through these changes. at room temperature, the formation of oxide layers on uranium and uranium - niobium alloys were found to occur rapidly upon exposure to oxygen, and the resultant oxide in each case was near - stoichiometric uo2. due to formation of niobium oxide in uranium - niobium alloys, the diffusion of o ~ ( - ) ( o ~ ( 2 - ) ) and u ~ ( 4 + ) in the interface region was prevented, and the corrosion resistance of uranium - niobium alloys to oxygen is greatly enhanced by alloying with niobium

    研究結果表明：清潔表面鈮和鈾的體等離子體振蕩所造成的電子能量損失的實驗值與理論計算值較為符合；隨著氧化程度的加劇，表面等離子體（ sp ） 、體等離子體（ bp ）以及價帶電子躍遷所造成電子能量損失的譜峰發生了明顯的連續偏移或強度的變化，這些變化可以用來分析鈾及鈾鈮合金的初始氧化過程；室溫下，鈾及鈾鈮合金很容易與氧作用，最終結果，鈾僅氧化為二氧化鈾，另外，在鈾鈮合金氧化過程中，因為有鈮的氧化物存在，不利於氧和鈾在界面擴散，增強了鈾鈮合金抗氧化性能； eels能獲得樣品表面的信息比aes更為表面，更為靈敏，但由於eels的譜線過于集中，主要在幾十ev以內，也有不容易區別和解譜的不足。
  13. Our experiments emphasized the correlation between micro structures and some properties of the coatings and tried to obtain the protective coatings with the comprehensively good properties, in which auger electron spectroscopy ( aes ), scanning electron microscope ( sem ), and x - ray diffraction ( xrd ) were employed to investigate the composition, microstructure and crystal phase of the coatings respectively, and the properties test was primarily considered with the wear resistance and corrosion resistance of the coatings

    本論文主要採用pvd技術中的磁控濺射鍍膜（ ms或rms ）及部分用等離子噴塗（ ps ）和熱氧化（ to ）表面處理技術研究了鈾的具有代表性的三種防腐保護鍍層，即單質al 、氧化物al _ 2o _ 3和合金al - zn鍍層。實驗力圖在制備技術、工藝參數及鍍層的微結構和性能之間找到一些內在的聯系，探索綜合性能較好的防腐蝕鍍層。
  14. Abstract : technical progress of uranium extraction in recent years is introduced, including new processes such as uranium extraction by supercritical co2 fluid, calixarene, capillary electrophoresis, oscillation ; application of novel extractants and absorbents ; and three wastes disposal

    文摘:介紹了近年來鈾提取方面的技術進展，包括提鈾新工藝:超臨界co2流體提取鈾，杯芳烴提鈾，毛細管電泳分離鈾，振蕩法萃取鈾；各國新型萃取劑和吸附劑的應用及三廢治理。
  15. In purex process, the separation of uranium / plutonium is achieved based on quick and quantitative reduction of pu ( iv ) to pu ( ih )

    在purex流程鈾鈈分離工藝中，一般使用一定的還原劑迅速和定量地還原pu以實現u 、 pu的分離。
  16. Nuclear energy - chemical separation and purification of uranium and plutonium in nitric acid solutions for isotopic and dilution analysis by solvent chromatography

    核能.用溶劑色譜法對同位素和稀釋度分析用的硝酸溶液中鈾和鈈的化學分離和提純
  17. Standard test method for isotopic analysis of hydrolyzed uranium hexafluoride and uranyl nitrate solutions by thermal ionization mass spectrometry

    用熱電離質譜法進行水解六氟化鈾和硝酸雙氧鈾溶液同位素分析的標準試驗方法
  18. All the more important, then, to keep a close eye on plants that produce quantities of such dangerous materials ? especially where uranium is enriched and plutonium is extracted from spent fuel

    然後，更重要的是要密切監視生產這種危險燃料的核工廠，特別是進行鈾濃縮和從廢料中分離鈈的那些地方。
  19. Some countries, most notably france, currently use a closed fuel cycle in which plutonium is separated from the spent fuel and a mixture of plutonium and uranium oxides is subsequently burned again

    有些國家，尤其是法國，使用一種封閉式燃料循環，能將鈽從核廢料分離出來后，與氧化鈾混合再次當成燃料。
  20. Separation methods of trace zirconium in uranium and determination of zirconium in nuclear material are reviewed

    本文綜述了核燃料和核材料中鈾、鋯的分離方法以及鈾中鋯的測量方法。
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