protactinium

noun

1. 镤（放射性化学元素）
   a chemical element. Protactinium is a radioactive metal found naturally when uranium decays.

1. In color and fabric, is based on popular trends this year, chose to protactinium gather green camouflage fabric;
   在色彩和面料上，是根据今年流行趋势，选择了返镤归真的绿色迷彩面料；
2. The adsorption of protactinium by unfired porous borosilicate glass
   多孔高硅氧玻璃对镤的吸附
3. Absorption behaviours of protactinium on inorganic absorbents and separation of protactinium from~ ( 233) U and Th
   镤在无机吸附剂上的吸附行为及它与铀、钍的分离
4. The extraction efficiency of protactinium is measured under the conditions of shaking time, concentrations of different acid and extractant concentrations. The effect of F~-is also investigated.
   分析了萃取效率与震荡时间、不同种类的无机酸浓度和萃取剂浓度的关系及F-对Pa溶剂萃取的影响。

noun

1. a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

   Synonym:    protoactiniumPaatomic number 91