查询词典 actinide

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

Using kerosene and 40%n octanol as diluents,some lanthanide and actinide can be extracted effectively by amido podand from nitric acid solutions.

以酰胺荚醚为萃取剂，正辛醇和煤油的混合物作稀释剂，研究了水相硝酸浓度和不同结构酰胺荚醚对镧系和锕系元素萃取分配比的影响，并对它们的萃取性能进行了比较，结果表明，适当的酰胺荚醚可以有效地从硝酸溶液中萃取镧系和锕系元

"Uranium Chemical element of the actinide series (with many transition element properties), chemical symbol U, atomic number 92. A dense, hard, silvery white metal that tarnishes in air,"

铀：周期表IIIb族锕系放射性化学元素，化学符号U，原子序数92，铀是致密的银白色金属，其硬度不足以刻划玻璃，于空气中会失去光泽。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。