ultra-high frequency cathode ray tube

例句：

1. 1.The ultra-high frequency cathode ray tube is used in televisions to display images on the screen.
   超高频阴极射线管在电视机中用于在屏幕上显示图像。
2. 2. The high-frequency oscillator is crucial for maintaining the stability of the electronic system.
   高频振荡器对于保持电子设备系统的稳定性至关重要。
3. 3. The microwave tube is a type of vacuum tube that operates at microwave frequencies.
   微波管是一种在微波频率下工作的真空管。