光电晶体管难以与电子晶体管竞争，这不仅仅是因为没有一项协议提供最好的制造方式。
Optical transistors, he says, will have a hard time competing with electrical ones, not least because there is no agreement over the best way to build them.
youdao
光耦，光电晶体管输出，基地连接。
Optocoupler, Phototransistor Output, With Base Connection.
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