This paper specifies the composition and principle of the circuit of the rectangle wave signal generator based on 89C51 single chip microprocessor control and BCD rate multiplier synthesis.是什么意思_This paper specifies the composition and principle of the circuit of the rectangle wave signal generator based on 89C51 single chip microprocessor control and BCD rate multiplier synthesis.在线翻译_英语_读音_用法_例句