用cathode emitter造句子,“cathode emitter”造句
來源:國語幫 1.63W
A thick screen had been placedbetween his cathode emitter and the radiated cardboard, proving that particlesof light were passing through solid objects.
The casing is hollow sealed, while a cathode emitter is in the casing and opposite the lighting portion, the sharp of the cathode emitter is provided with a carbon nanometer line.