Soft soil can filter high frequency signals, but can amplify low frequency signals.
软土对高频地微动信号有滤波作用，对低频信号起放大作用，而硬土层则相反。
This paper designs a digital FIR filter architecture, which can be used to filter high-speed differential signals.
设计了一种对高速差分信号进行FIR滤波的滤波器结构。
The function of a loop filter is to filter high-frequency signal out of the output voltage from PFD and CP, thus the output signal from VCO will be purified.
环路滤波器的作用就是滤除从PFD&CP出来的电压中的高频成分，从而纯化VCO的输出信号。
The system uses a vent fan, a manually adjustable backpressure damper, a differential pressure-sensing gage, and an inlet air filter high differential pressure alarm switch.
此系统用一个排气扇，手动调节反压闸，压差传感器和一个进气过滤器压差高报警开关。
Filter. High-pass, low-pass, band-pass, or band-stop filter can be specified.
滤波器。可指定高通、低通、带通或带阻滤波器。
The DCZ4 vibration measuring instrument is an advanced multi-function and low-frequency instrument for low pass filter, high pass filter and double integration.
DCZ4多功能低频振动测量仪是一种具有低通滤波、高通滤波和重积分功能的先进振动测量仪。
Company's main products are the early effect filter, in effect filter, high efficiency filters and activated carbon air filter.
公司主要产品有初效过滤器、中效过滤器、高效过滤器，以及活性碳空气过滤器。
Company's main products are the early effect filter, in effect filter, high efficiency filters and activated carbon air filter.
公司主要产品有初效过滤器、中效过滤器、高效过滤器，以及活性碳空气过滤器。
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