| 单词 | photodetector |
| 释义 | photodetector /foh"toh di tek'teuhr/, n. 1. photosensor. 2. Electronics. any device, as a photodiode, phototube, or photovoltaic cell, that uses the photoelectric effect to convert radiant energy into an electrical signal. [1945-50; PHOTO- + DETECTOR] |
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