单词	phototransistor
释义	phototransistor /ˌfəʊtəʊtranˈzɪstə / /-trɑːnˈzɪstə/ /-ˈsɪstə/ noun A transistor that responds to light striking it by generating and amplifying an electric current.It contains an infrared light-emitting diode as a light source and a phototransistor as a light detector.... The output phototransistor features a 30 V collector-emitter voltage and 5 V in the opposite direction.
随便看	over-bright overbrim overbrimming overbroad overbrow over-budget overbudget over-budgeted over-budgeting overbuild over-bull over-bullish over-bullishness overbump overburden overburdensome over-burn over-burning over-burnt overbusy overbuy overby overbye over-caffeinated overcall

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