green beam（绿电子束）是什么意思？音标发音+图解场景

绿电子束 /ˈɡɹiːn ˈbiːm/ n

English: green beam · 绿电子束

释义：Electron beam hitting the sensitive parts of the screen that are designed to emit green light.

这个词出现在以下图解场景（1）