福克斯词典 \

英汉例句

\ 钫的例句（钫在句子中的用法）

钫的例句（钫在句子中的用法）

Even Francium's most stable isotope, Francium - 223 only has a half - life of 22 minutes. 钫的最稳定的同位素, 钫 -223 也只有22分钟的半衰期.
Francium is the densest of the Alkali Metals and also radioactive. 钫是碱金属中密度最大的,具有放射性.
The half - life of francium is 22 minutes. 钫的半衰期是22分钟.

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