new
cathode ray的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
Noun:
-
a beam of electrons emitted by the cathode of an electrical discharge tube
cathode ray的用法和樣例：
例句
用作名詞 (n.)
- A cathode ray tube is shaped like a large bell.
陰極射線管的形狀象個大鈴鐺。 - Cathode rays are attracted by a positive charge.
陰極射線被陽電荷所吸引。
