?正电子衰变
... positron 正电子，阳电子 positron decay 正电子衰变 possess 占领，存在 ...
?阳电子衰变
... positron emission 正电子放射 positron emitter 正电子发射体... positron decay 阳电子衰变 ...
正子衰变
正电子衰变能量
正电子β衰变
The detector allows the machine's operators to work out which particles have been created by the electron-positron collisions, and to follow their patterns of decay.
ECONOMIST: How to build a B-factory
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