DAA chip Si3018 is to modulate digital signals into analog signals, and then output them, or demodulate analog signals it receives into digital ones.是什么意思_DAA chip Si3018 is to modulate digital signals into analog signals, and then output them, or demodulate analog signals it receives into digital ones.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句