electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope 同义词：tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve,
In electronics, a vacuum tube, electron tube (in North America), thermionic valve, tube, or valve is a device controlling electric current through a vacuum in a sealed container. The container is often thin transparent glass in a roughly cylindrical shape.
例句与用法
1.
They can be used in devices for which vacuum tube valves were unsuitable, such as in hearing aids designed to fit into the ear . 它们能用在不宜采用真空管的装置上，例如能用在放在耳朵内的助听器里。
2.
Vacuum tubes require dc voltage sources as well 真空电子管也要求以直流电压为电源。
3.
All glass vacuum tube full glass al - n - al vacuum tube 全玻璃真空管全玻璃铝氮铝真空管
4.
Used as frame of vacuum tube , heating elements W1 w2 ：用于制造电子管栅极边杆，加热元件等。
5.
Lee de forest invents the vacuum tube 李.德福雷斯特发明电子管。
6.
A specific vacuum tube which converts light into electrical energy 把光转换成电能的一种真空管。
7.
Not any air gets into the vacuum tube 没有空气能进入真空管。
8.
Slide - back vacuum tube voltmeter 偏压补偿式电子管伏特计
9.
The ancestor of these miniature electronic devices is the vacuum tube 这些微型电子装置的鼻祖就是真空管。
10.
All glass vacuum tubes are the key component of solar collectors 全玻璃真空管是太阳能集热器中的关键部分。
您当前位置：