词族 · actinium
词形变化
中文词源
actinium 锕
来自词根actino-, 射线，光线，-ium,化学元素后缀。因该元素在黑暗中发光而得名。
英语词源
- actinium (n.)
- radioactive element discovered in 1899, from Greek actin-, comb. form of aktis (genitive aktinos) "ray, radiance" (see actino-) + chemical suffix -ium.
权威例句
- 1. Any of a series of chemically similar, radioactive elements with atomic numbers ranging from 89 ( actinium ) through 103 ( 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.
- 2. The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene ) NO 3 system.
- 本文研究了在HNO_3体系中,P_ ( 204 ) 萃取La和 Ac的 机理及影响La, Ac萃 取分离因素,给出了La, Ac分配的数学摸型.
- 3. The extraction mechanism and separation process of lanthanum and actinium were studied in HDEHP ( kerosene ) - HNO 3 system.
- 研究了在HNO_ 3体系中,P_ ( 204 ) 萃取La和 Ac的 机理及影响La, Ac萃取分离因素,给出了La, Ac分配的数学模型.