锕系元素

China Demonstration Fast Reactor was chosen for the reference core of ADS sub-critical fast reactor, mainly studying on the feasible of transmutation minor actinides from the spent fuel of PWR.

选取中国示范快堆作为次临界快堆参考堆芯，研究次临界快堆作为嬗变PWR乏燃料中次锕系元素的可行性。

The concentration of neptunium and plutonium is extremely low in environmental samples. Additionally such samples have a complex matrix composition, which is to be taken into account for a proper analysis.

环境样品基体复杂，铀、镎和钚等锕系元素含量非常低，在复杂的生态条件下，这些核素常常具有复杂多变的化学形态，要准确测定其含量，必须要有灵敏可靠的检测方法。

Conventional radiochemical methods such as alpha spectrometry, neutron activation analysis, liquid scintillation system, fission track and gamma spectrometry for the quantitative determination of neptunium and plutonium often require complicated and time-consuming sample preparation and separation procedures.

研究环境中铀、镎、钚等长寿命放射性核素的精密测定，对保护公众安全和保护环境，对了解核设施的历史操作情况和现状，都具有重要意义。环境样品基体复杂，铀、镎和钚等锕系元素含量非常低，在复杂的生态条件下，这些核素常常具有复杂多变的化学形态，要准确测定其含量，必须要有灵敏可靠的检测方法。

The sorption of trivalent Am and Eu onto TiO_2 and Al_2O_3 was studied by using the batch techniques.

本文用静态法研究了锕系元素中的Am及其类比物Eu在氧化钛及氧化铝上的吸附行为及规律。

The experimental results indicate that the monoamide with methyl as the alkyl has a high solubility in water, can be used as the complexing stripping-agent, and discomposes completely at 250 C.

研究发现取代烷基为甲基的单酰胺产品，水溶性大，可作为锕系元素水相络合反萃剂，并且废反萃剂加热到250 C就可以完成分解。

Pyrochlore rich Synroc samples with different simulated actinide waste loading(37 %～50 %) are fabricated and tested.

采用与钙钛锆石性能相近的烧绿石为主要矿相，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。

The founded models were applied to the calculation of the molten salt actinide recycler and transmuter system, in which the neutronics, thermal hydraulics and safety characteristics were obtained, and the influences of the inlet temperature, inlet velocity and the resistant time of the fuel salt in the external loop were analyzed.

将建立的数学模型应用于锕系元素再循环嬗变熔盐堆的计算，对其堆芯物理特性、热工水力特性和安全特性进行了系统分析，考察了入口温度、速度及燃料盐在堆芯外运行时间的影响。

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。

The feasibility to use this electrode in the thermodynamics study of complexation and kinetics study of redox of actinide elements is evaluated.

还探讨了这种离于选择电极用于锕系元素络合过程热力学和氧化还原过程动力学研究的可行性。

Their discovery marks the first abundance determination of the actinide s 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。你知道它的英文吗？

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。