其次，低阻值电阻器降低了输入时间常数，使仪器的响应时间更短。
Second, lower resistor values reduce the input time constant and result in faster instrument response time.
噪声的产生和滤波均由单板机实现。改变单板机CT C定时器的输入时间常数，就可直接调整模拟衰落信号的衰落速率。
The noise generation and filters are performed by a microprocessor for which the input time constant of CTC can be varied to control the fading rate.
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