名词
中文翻译：真空管
同义词：
['真空管放大器例句：1. The vacuum tube keyer was the first electronic device invented by Edison.（真空管放大器是爱迪生发明的第一种电子设备。）']
例句：
-
1. The vacuum tube keyer was the first electronic device invented by Edison.
真空管放大器是爱迪生发明的第一种电子设备。
-
2. The vacuum tube keyer was used in radios and televisions for decades.
真空管放大器在无线电和电视上使用了几十年。
-
3. In recent years, researchers have been exploring new ways to improve the performance of vacuum tube keyers.
近年来，研究人员一直在探索提高真空管放大器性能的新方法。