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1·The filter is composed of an active filter (AF) and a passive filter (PF).

滤波器是由有源滤波器(AF)和无源滤波器(PF)串联组成。

2·In part two, this paper discuss a kind of method design microwave active filter.

在第二部分，介绍了一类微波有源滤波器的设计方法。

3·Promote the new products like Active Filter, Advanced Harmonic Filter in tobacco.

促进新产品在烟草行业中的销售，如有源滤波器、无源滤波器等。

4·Basic principles and structure of power active filter is introduced in this paper.

介绍了电力有源滤波器的基本原理和结构。

5·Impact of backwashing on biomass growth in biological active filter was researched.

研究了反冲洗对生物活性滤池生物量的影响。

6·In this paper, we try to make use of Computer Aided Design for all pole active filter.

本文对全极点有源滤波器进行了计算机辅助设计。

7·Double current hysteresis optimal state control method in single active filter is proposed.

提出了单相有源滤波器双滞环电流比较状态优化控制方法。

8·Based on the method, active filter device has a wide application prospect and practical value.

基于该方法的有源滤波器装置有较好的应用前景和实用价值。

9·A new active filter with one capacitor, one operational amplifier and two resistors is presented.

这种新型的有源滤波器，只用一个电容器、一个运算放大器和两个电阻器。

10·This paper presents an available method-an active filter based on adjusting maximum phase of deviation.

给出了一种基于偏差最大相校正的电力有源滤波器的实现方法。