beam-switching tube

例句：

1. 1.The new beam-switching tube technology is expected to greatly improve the efficiency of our manufacturing process.
   新型光束开关管技术预计将极大地提高我们制造过程的效率。
2. 2. The beam-switching tube was used in the early days of television broadcasting as a way to transmit signals over long distances.
   在电视广播的早期，光束开关管被用作一种远距离信号传输的方式。
3. 3. The beam-switching tube has been replaced by more efficient alternatives in recent years, but itremains an important part of many modern electronic devices.
   近年来，更高效的替代品已经取代了光束开关管，但它仍然是许多现代电子设备的重要组成部分。