cathode beam

• 电子束

cathode beam的用法和样例：

例句

1. The device in a writing tube or CRT which generates the electron beam.
   扫描管或阴极射线管中一种产生电子束的部件。
2. Changes in the beam intensity will produce changes of the count rate.
   电子束强度变化将引起计数率的变化。