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	southernwood Southeyan Southey, Robert south-facing Southfield south-following South Gate South Georgia South Glamorgan south-going South Hadley south half southing South Island South Islander South Jordan South Ken South Kensington South Kingstown South Korea South Korean southland Southland beech southlander south-like

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