| 释义 |
alpha particle
释义
α粒子：一种带正电的粒子，由两个质子和两个中子组成，是放射性物质衰变时释放出的粒子。
例句
1·This is the analogy to the alpha particle .
这和阿尔法粒子类似。
2·Upon gaining two electrons the alpha particle becomes a helium atom.
粒子获得两个电子之后就变成了氦原子。
3·And there he was able to identify the alpha particle as the helium nucleus.
他证实了，阿尔法粒子就是氦核。
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