electron gun

漢語翻譯

【計】 電子槍
【化】 電子槍
【醫】 電子槍

英文解釋：

名詞 electron gun:

1. the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it