A pre-amp component, such as a band-pass filter (32), causes linear distortion.
放大器前的部件，诸如带通滤波器(32)，引起线性失真。
A band-pass reflective surface (32) is further disposed on the absorptive surface.
带通反射表面(32)进一步布置在吸收表面上。
In this paper, a band-pass filter is used to separate the components of rapid fluctuations with various time scales from ms-resolution data of solar bursts.
同时对太阳毫秒级资料作带通滤波将不同时间尺度的快速起伏分离出来。
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