• n. [物] 正電子，陽電子

縮寫自positive electron.

positron (n.)

1933, coined from posi(tive) (elec)tron.

1. After an immeasurably short time interval, the electron - positron pair recombine.

電子 ― 正電子偶經(jīng)過一個(gè)不可測量的短暫時(shí)間間隔后就重新復(fù)合.

來自辭典例句

2. The positron is an antielectron.

正電子就是反電子.

來自辭典例句

3. The electron - positron pair may survive without recombining.

電子 - 正電子偶可以存在下來而不再復(fù)合.

來自辭典例句

4. The vacancy defects of samples were measured by slow positron annihilation.

借助慢正電子湮沒技術(shù)研究了樣品的空位型缺陷.

來自互聯(lián)網(wǎng)

5. Magnetized water samples were measured by the positron annihilation lifetime spectrometer.

用正電子湮沒壽命譜儀對經(jīng)過磁場處理的水樣品進(jìn)行了對照測量.

來自互聯(lián)網(wǎng)