= pion, n. Cf. mu-meson, n.
| 单词 | θ79134 |
| 释义 | the world > matter > physics > atomic physics > particle physics > particle participating in strong interaction > meson > [noun] > pion (4) pi-meson1947 = pion, n. Cf. mu-meson, n. pion1951 Any of a group of mesons that have masses of approx. 140 MeV (270 times that of the electron), zero spin, zero hypercharge, and isospin of 1, on… Subcategories:— neutral (1) — production of (1) |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。