positron

英式发音 ['pɒzɪtrɒn] 美式发音 ['pɑzɪtrɑn]

一般意思:

n.正电子

完整意思:

正电子;正电子(一种带有电荷+e的基本粒子)。

词性:

名词

造句:

1. Positrons are the antiparticles of electrons and have the same mass but opposite charge.
(正电子是电子的反粒子,质量相同但电荷相反。)
2. Positron emission tomography (PET) is a medical imaging technique that usespositrons to create detailed images of structures inside the body.
(正电子发射断层摄影术(PET)是一种使用正电子创建身体内结构详细图像的医学成像技术。)

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