| 释义 |
介子jièzǐ质量介于质量轻的基本粒子(如电子)和质量重的基本粒子(如核子)之间的基本粒子。种类较多,性质不稳定,有的带正电,有的带负电,有的不带电,能用来轰击原子核,引起核反应。{meson; mesotron; elementary particle whose mass falls between a light-mass elementary particle (e.g. an electron) and a heavy-mass elementary particle (e.g. a nucleon), of various types, unstable, some carry a positive electrical charge, some a negative, and some are neutral able to be used to bombard the atomic nucleus to cause a nuclear reaction} |