photocell
/foh-toh-sel/US // ˈfoʊ toʊˌsɛl //UK // (ˈfəʊtəʊˌsɛl) //
光电池,光讯,光电元件,光电管
Definitions
n.名词 noun
- 1
Electronics.
- : a solid-state device that converts light into electrical energy by producing a voltage, as in a photovoltaic cell, or uses light to regulate the flow of current, as in a photoconductive cell: used in automatic control systems for doors, lighting, etc.
Examples
A fast reading with the photocell gave me the apparent magnitude and a comparison with its absolute magnitude showed its distance.
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