Concept information
优选词，正式主题词
A71fermi
定义
- The $\ extit{fermi}$, or $\ extit{femtometer}$ (other spelling $femtometre$, symbol $fm$) is an SI unit of length equal to $10^{-15} metre$. This distance is often encountered in nuclear physics as a characteristic of this scale. The symbol for the fermi is also $fm$.
URI
https://vocab.sentier.dev/units/unit/FM
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