柯林斯詞典photocell /?f??t???s?l/ 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) 返回 photocell劍橋詞典an electrical device that produces a current or a voltage when light shines on it 光電琯，電眼 Photocells are used in burglar alarms . 光電琯被應(yīng)用於防盜警報(bào)器中。 返回 photocell