lowpass

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Describing a filter, circuit, or system that rejects or attenuates a frequencies above a specified value while passing those be. not-comparable
    — From the “highpass-lowpass” filter, “bandpass-bandreject” filter, or the flat amplifier, the signal, after suitable amplification with adjustable gain, may be fed to a meter which gives the root mean square value of the voltage, …

词源

From low + pass.
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