光发送器 Traditional 光發送器 guāng fā sòng qì 🔊 optical transmitter + Keep this word Meanings guāng fā sòng qì 光發送器 optical transmitter Its characters 光guānglight; ray (CL:道[dao4])HSK 4发fāto send outHSK 3送sòngto send; to deliver; to transmitHSK 2器qìdevice