“vacuum tube”可以造什么句，vacuum tube造句
vacuum tube multivoltmeter
slide-back vacuum tube voltmeter
plate-detection type vacuum tube voltmeter
a vacuum tube that amplifies a flow of electrons.
The ancestor of these miniature electronic devices is the vacuum tube.
"The technology of radio improvement followed the development of the vacuum tube, the electronic-tube oscillator, the tuned circuit, and other components."
"It was the first triode vacuum tube, incorporating a control grid as well as a cathode and an anode."
In the case of constant pipe diameter, lengthening the length of vacuum tube is an effective way to increase the total heat of solar water heater!
Based on the analysis of vacuum tube slight variation equivalent circuit, a headphone amplifier is designed to drive high fidelity headphone.
The vacuum tube is an electron tube from which all or most of the gas has been removed, permitting electrons to move with no or low interaction with any remaining gas molecules.
a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen.
The production has been nearly 20 years from the time scale of vacuum tube, product structure, process and equipment has been very mature, the thermal performance of the already very difficult.
Transistors take the place of vacuum tubes in semiconductor radios.
digital vacuum tube voltmeter
ultra-short wave vacuum tube voltmeter
Interference with a new coating process, than the average gradient film better performance vacuum tube collector.
an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube.
a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays.
Solar water heater is renewable energy sources product which widely used in China. It can be devided into vacuum tube solar water heater and flat panel solar water heater.
diode (e vacuum tubes)
vacuum tube solar heating element
battery for supplying a constant positive voltage to the plate of a vacuum tube.
The most advanced collection method involves a vacuum tube, which is used to suck minute amounts of the jelly out of the queen cells.
These vacuum tubes will see use in the output stage.
a small coil in series with the anode of a vacuum tube and coupled to the grid to provide feedback.
Finally the test results of vacuum tube operation are presented.
a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators.
