| 释义 |
pho·to·phone
\ˈ ̷ ̷ ̷ ̷ˌfōn\ noun
Etymology: phot- + -phone
: a device whereby a sound signal (as a voice) is transmitted by causing it to modulate a beam of visible or infrared light which is received by a photoelectric cell, amplified, and reconverted into sound |