It’s important to know the masses of different nuclei, since nuclear interactions are all about mass-energy conversion.

了解不同原子核的质量很重要，因为核相互作用都是关于质能转换的。

Topics that people use muons for range from fundamental constants of nature, basic symmetries, weak nucleon and nuclear interactions.

人们使用 μ 子的主题范围从自然的基本常数、基本对称性、弱核子和核相互作用。