They can be used in devices for which vacuum tube valves were unsuitable, such as in hearing aids designed to fit into the ear . 它們能用在不宜采用真空管的裝置上,例如能用在放在耳朵內(nèi)的助聽器里。
Vacuum tubes require dc voltage sources as well 真空電子管也要求以直流電壓為電源。
All glass vacuum tube full glass al - n - al vacuum tube 全玻璃真空管全玻璃鋁氮鋁真空管
Used as frame of vacuum tube , heating elements W1 w2 :用于制造電子管柵極邊桿,加熱元件等。
Lee de forest invents the vacuum tube 李.德福雷斯特發(fā)明電子管。
A specific vacuum tube which converts light into electrical energy 把光轉(zhuǎn)換成電能的一種真空管。
Not any air gets into the vacuum tube 沒有空氣能進(jìn)入真空管。
Slide - back vacuum tube voltmeter 偏壓補(bǔ)償式電子管伏特計
The ancestor of these miniature electronic devices is the vacuum tube 這些微型電子裝置的鼻祖就是真空管。
All glass vacuum tubes are the key component of solar collectors 全玻璃真空管是太陽能集熱器中的關(guān)鍵部分。
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.