"锕"是个多义词,它可以指锕(一种放射性金属),锕(汉字)。
注3:锕充足比率可用于测量恒星的年龄。
Note3: Actinide abundance ratios may be applied to measurements of stellar ages.
这些元素都有放射性,而且性质与锕相似。
All are radioactive and have similar properties to actinium.
锕合成很快,在这种环境下,因为超新星爆炸。
Actinides are synthesized very quickly in such environments as supernova explosions.
So, there will be two of these contests, one for lanthanides, one for actinides.
这个方法有两部分,一部分针对镧系元素,一部分针对于锕系元素。
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