pion
英[\'paɪɒn]
美[\'paɪɒn]
基本释义
- n.
- 介子
实用例句
Two photons are created in the decay of the neutral pion.
双光子是在中性兀介子衰变中产生的.
辞典例句
英英释义
Noun
1. a meson involved in holding the nucleus together; produced as the result of high-energy particle collision