Alpha emission
[电] α发射
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
🗣️ 情景例句
so she had to take an earlier flight today.
所以她不得不在今天搭早一班的班机。
I was born and raised here.
我生于斯，长于斯。
I'm sure you need an original signature, not a faxed copy.
我知道你们需要的是原件，不是传真件。