The problem of collecting and delivery shunting of non-through wagon flow on the actinoid private line belongs to a kind of the combinatorial optimization problems.

放射形专线非直达车流取送车问一类组合优化问,影响因素较多。

This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.

离交换剂在萃取色谱中得到了广泛的，文详细总结了离交换剂在分析化学中碱金、碱土金、贵金、稀土元素、锕系元素等的分离与测定。