analog integrator

例句：

1. 1. The digital signal processor (DSP) is an analog integrator that can process and analyze signals.
   数字信号处理器是一个模拟积分器，可以处理和分析信号。
2. 2. The analog integrator was used to calculate the average of a series of numbers.
   模拟积分器被用来计算一系列数字的平均值。
3. 3. The analog integrator was used to detect the presence of a specific frequency in the audio signal.
   模拟积分器被用来检测音频信号中特定频率的存在。