单词：cathode rays
cathode rays的用法和样例：
例句
- To realize the high efficiency of dernisting, thenew type cathode wires and anode tubes with superperformance were developed for increasing the current density and field intensity.实现除雾高效化，关键在于研制高性能的新型阴极线和阳极管，提高电流密度和电场强度。
- Cathode rays are attracted by a positive charge.阴极射线被阳电荷所吸引。
- A cathode ray tube is shaped like a large bell.阴极射线管的形状象个大铃铛。
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