1)Actinides['?ktinaidz]锕系元素
1.Trialkylphosphine oxide extraction- An effective process for the recovery of actinides from highly active waste solution;三烷基氧膦革取──由高放射性废液回收锕系元素的有效方法
2.Quantum topological chemical study on ground state and excited state properties of the actinides锕系元素基态与激发态性质的量子拓扑化学
3.The research progress on SFCE of lanthanides and actinides and applications in the process study of spent fuel reproc.文章主要介绍超临界流体的特点、超临界流体络合萃取的基本原理及其影响因素,并对超临界流体络合萃取镧系和锕系元素的研究进展及其在乏燃料后处理工艺研究中的应用进行综述。
英文短句/例句
1.actinide chalcogenide锕系元素硫族元素化合物
2.Redefinition of Lanthanides and Actinides--32 lines periodic table镧系锕系元素的重新界定与32列元素周期表
3.REMOVING ACTINIDES FROM HIGH LEVEL WASTES--PROGRESS OVER TEN YEARS十年来强放废液中锕系元素去除的进展
4.SPECIFIC SEQUESTERING AGENTS FOR THE ACTINIDES Ⅹ.STUDY OF THE DECORPORATION DRUGS FOR AMERICIUM锕系元素的螯合药物——Ⅹ.新型镅促排药物的研究
5.Quantum topological chemical study on ground state and excited state properties of the actinides锕系元素基态与激发态性质的量子拓扑化学
6.Measurement of Essential Properties of Some Lanthanide and Actinide Elements,and Gathering on the Groups of Data of Elements几种镧系及锕系元素基本性质精确测定及元素数据群的收集
7.Since the unstable nuclei exist between actinides, including thorium and stable nuclei like lead and bismuth, explosive events such as supernovae are required to produce actinides.自不稳定核之间存在着锕系元素,包括钍和稳定核像灌了铅,铋,爆炸性事件,如超需出示锕.
8.The distribution ratios of actinides are very low when aqueous phase is nitric acid.在硝酸溶液中 ,萃取体系对锕系元素的萃取率很低 ;
9.31 figures appended show directly the successive change regularity of actinide properties with Z .所附的31幅图可直观地反映出锕系元素性质递变的特征。
10.Their discovery marks the first abundance determination of the actinides element thorium in a star beyond the Milky Way, and follows the detection of thorium in more than ten stars within the Milky Way.他们发现,标志着首丰测定的锕系元素钍星以外的银河系,跟检测钍十余恒星的银河系.
11.Actinide: Any of the series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89-103).锕系:周期表中从锕到铹(原子序数89～103)的十五个依次排列的一组化学元素。
12.Of or belonging to the series of elements whose atomic numbers are greater than103.超锕系的属于或原子序数大于103的一系列元素的
13.The possibility of its potential application is discussed for separation of actinon-lanthanon mixtures by ion exchange.讨论了该离子交换法在分离锕-镧系元素上应用的可能性。
14.a radioactive element of the actinide series; found in uranium ores.锕类的放射性元素，见于铀矿中。
15.European Rare-Earth Actinide Society (ERES)欧洲稀土金属和锕元素协会
16.a radioactive element of the alkali-metal group discovered as a disintegration product of actinium.一种碱金属属的放射性元素，是锕瓦解的产物。
17.a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium.15个从锕到铹的原子量递增的放射性元素。
18.Any of a series of chemically similar, radioactive elements with atomic numbers ranging from89(actinium)through103(lawrencium.锕类任何化学性质相似，原子序数在89（锕）与103（铹）之间变化的放射性元素
相关短句/例句
actinide[英]['?ktinaid][美]['?kt?,na?d]锕系元素
1.The results demonstrate that OET has good application to the physicochemical properties of lanthanide and actinide, especially to the spectral properties which have not been reported by means of QSPR (.研究表明OET(轨道能量拓扑指数)对镧系元素和锕系元素的物理化学性质具有良好的应用,尤其是对尚未借助QSPR(定量结构性质关系)手段进行研究的光谱性质。
2.Zirconolite rich ceramics and Perovskite rich ceramics are fabricated for the incorporation of simulated trivalent actinide wastes, and the physical properties、XRD、SEM and durability tests are performed.针对模拟三价锕系元素的固化 ,分别合成了富钙钛锆石固化体和富钙钛矿固化体 ,并对其主要性能进行了分析和比较 ,为其对三价锕系元素的固化提供了依
3.Pyrochlore rich Synroc samples with different simulated actinide waste loading(37 %～50 %) are fabricated and tested.采用与钙钛锆石 (Zirconolite)性能相近的烧绿石 (Pyrochlore)为主要矿相 ,制备了对锕系元素废液有不同包容量 (37%～ 5 0 % )的人造岩石固化体 ,测定了其物理性能。
3)Actinide elements锕系元素
1.Several processes for separation of actinide elements from high level liquid waste were introduced and compared.本文对近年各国开发的从高放废液中分离锕系元素流程 ,进行了简单介绍和比较 ,指出了各流程优、缺点及存在的问题。
2.An adsorption-microfiltration process and a coagulating coprecipitation-microfiltration process were developed to treat the wastewater containing cesium and strontium respectively and the operating parameters of the coagulation-microfiltration process for the treatment of actinide elements wastewater were optimized as well in this paper.本文开发了吸附-微滤工艺、混凝共沉淀-微滤工艺分别处理含铯、锶的废水,对混凝-微滤工艺处理锕系元素废水的操作参数进行了优化。
4)super actinide element超锕系元素
5)transactinide elements锕系后元素
6)light actinide轻锕系(元素)
延伸阅读
锕系元素锕系元素actinicles周期系ⅢB族中原子序数为89～103的15种化学元素的统称。包括锕、钍、镤、铀、镎、钚、镅、锔、锫、锎、锿、镄、钔、锘、铹，它们都是放射性元素。铀以后的原子序数为93～109的17种元素称为超铀元素。前4种元素锕、钍、镤、铀存在于自然界中，其余11种全部用人工核反应合成。锕系元素原子结构的特点是：锕以后的元素电子依次填充5f内电子层，它们的最外层的电子构型基本相同，使锕系元素之间的性质非常相似，与镧系元素一样，锕系元素中也存在着离子半径收缩现象。表：锕系元素锕系元素都是金属，与镧系元素一样，化学性质比较活泼。它们的氯化物、硫酸盐、硝酸盐、高氯酸盐可溶于水，氢氧化物、氟化物、硫酸盐、草酸盐不溶于水。大多数锕系元素能形成配位化合物。a衰变和自发裂变是锕系元素的重要核特性，随着原子序数的增大，半衰期依次缩短，铀238的半衰期为4.468×109年；铹260的半衰期只有3分钟。锕系元素的毒性和辐射（特别是吸入人体内的a辐射体）的危害较大，必须在有防护措施的密闭工作箱中操作这些物质。在人工合成的锕系元素中，只有钚、镎、镅、锔的年产量达千克级以上，锎仅为克量级，锿以后的元素量极少，半衰期很短，仅用于研究。用途比较多的只限于铀和钍，钚在某些情况下用作核燃料。
