词族 · positron
词形变化
中文词源
positron 正电子
缩写自positive electron.
英语词源
- positron (n.)
- 1933, coined from posi(tive) (elec)tron.
权威例句
- 1. After an immeasurably short time interval, the electron - positron pair recombine.
- 电子 ― 正电子偶经过一个不可测量的短暂时间间隔后就重新复合.
- 2. The positron is an antielectron.
- 正电子就是反电子.
- 3. The electron - positron pair may survive without recombining.
- 电子 - 正电子偶可以存在下来而不再复合.
- 4. The vacancy defects of samples were measured by slow positron annihilation.
- 借助慢正电子湮没技术研究了样品的空位型缺陷.
- 5. Magnetized water samples were measured by the positron annihilation lifetime spectrometer.
- 用正电子湮没寿命谱仪对经过磁场处理的水样品进行了对照测量.