photo cell

柯林斯词典

photocell /ˈfəʊtəʊˌsɛl/

• 1. N a device in which the photoelectric or photovoltaic effect or photoconductivity is used to produce a current or voltage when exposed to light or other electromagnetic radiation. They are used in exposure meters, burglar alarms, etc 光電池 (Also called photoelectric cell, electric eye)

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