cathode ray

• n. 阴极射线

英英释义

Noun:

1. a beam of electrons emitted by the cathode of an electrical discharge tube

例句

用作名词 (n.)

1. A cathode ray tube is shaped like a large bell.
   阴极射线管的形状象个大铃铛。
2. Cathode rays are attracted by a positive charge.
   阴极射线被阳电荷所吸引。