guāng​diàn​guǎn

phototube

光电管 光電管 guāng​diàn​guǎn
phototube
A type of diode or electron tube that converts light energy into electrical signals; used in equipment for light measurement, counting, and automatic control systems.

Frequency

Movie subtitles
0.030 per million appears in 0% of films
Written text
0.051 per million

Cross-References

Same as

Sources