series actinium的意思|示意
系列锕
series actinium的网络常见释义
锕系 ... eka actinium 类锕 series actinium 锕系 actinium lead 锕铅 ...
series actinium相关短语
1、 actinium series 锕系
2、 uranium actinium series 锕铀系
3、 actinium decay series 锕衰变系
series actinium相关例句
There are three naturally occurring radioactive series - the thorium series, the actinium series, and the uranium series.
有三个天然存在的放射系列，即钍系、锕系和铀系。