1. products used in television background, background sofa, bedside background and restaurant background, the top wall. ��ƷӦ���ڵ��ӱ�����ɳ����������ͷ��������������������ǽ�档
2. The basic concept of class D amplifier is to convert the input analog signal into a pulse width modulated signal (PWM signal), then the PWM signal is demodulated to reconstruct the analog signal. ��ʷŴ����Ļ���������ǽ����Ŵ���ź�ת��Ϊ���������źţ��������������������
3. Electromyographic signal is a kind of biological signal in the background full of noise, so it is somewhat difficult to detect and extract the electromyographic signal. �����źŵ��ص���ǿ���������µ������źţ��Լ����źŵļ�����ȡ����һ�����Ѷȡ�
4. The complex apparent conductivity of induction log consists of R-signal (resistive signal) and X-signal (reactive signal), which are defined in uniform medium. ��Ӧ�⾮��ʵ���ӵ絼�ʣ�Ҳ��R�źţ����鲿�ӵ絼�ʣ�Ҳ��X�źţ����ɸ��ӵ絼�ʡ�
5. Time clock signal source directly fetches from clock signal of PCI bus in the computer system or signal generator, which can generates high frequency time clock signal. ��ʱ���ź�Դֱ��ȡ���ڸõ���ϵͳ��PCI���ߵ�ʱ���źŻ���һ�ɲ�����Ƶʱ���źŵ�ʱ���źŲ����������Թ�Ӧ�ü�����·���������ʱ���źš�
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