Alpha emitter
[电] α发射器
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
n. 发射体, 发射极\\n[计] 发射极; 发射器
🗣️ 情景例句
Great Thanksgiving.
美好的感恩节。
I want to go coach, and I'd prefer a morning flight.
我要普通舱，还有，我喜欢早上的班机。
It was upon this principle that the first instruments were made,
据这一原理，制造出了最初的地震仪器，