cathode ray
英
美
- n.阴极射线
详细释义
Noun:
-
a beam of electrons emitted by the cathode of an electrical discharge tube
双语例句
- A cathode ray tube is shaped like a large bell.
阴极射线管的形状象个大铃铛。 - Cathode rays are attracted by a positive charge.
阴极射线被阳电荷所吸引。
用作名词 (n.)
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