弘扬中华文化·传承国学经典

actinium是什么意思

actinium

英 [æk'tɪnɪəm] 美 [æk'tɪnɪəm]

n. [化学] 锕（元素符号Ac）

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。

英文词源

actinium (n.): radioactive element discovered in 1899, from Greek actin-, comb. form of aktis (genitive aktinos) "ray, radiance" (see actino-) + chemical suffix -ium.

双语例句

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.