vacuum tube
diode
triode
thermionic emission
cathode
1. The signal is amplified by an electron tube in this old radio.
这台旧收音机通过电子管对信号进行放大。
2. Engineers used the electron tube to control the current in early computers.
工程师们在早期的计算机中使用电子管来控制电流。
A: Does this vintage amplifier require an electron tube?
A：这台复古放大器需要使用电子管吗？
B: Yes, it uses several vacuum tubes to achieve its warm sound.
B：是的，它使用几个真空管来实现其温暖的声音。
1) An electronic device that controls electron flow.
2) Also known as a vacuum tube.
3) A key component in pre-transistor electronic devices.
1. 电子管
e.g. The electron tube controls the flow of electrons.
电子管控制电子的流动。
noun
1. An electronic device that controls the flow of electrons in a vacuum or gas.
Synonym: vacuum tube