| 释义 |
〔filter〕Any of various electric, electronic, acoustic, or optical devices used to reject signals, vibrations, or radiations of certain frequencies while passing others.滤光器，滤色镜，滤波器：一种电学的、电子学的、声学的或光学的设备，用于在通过其它物时限制特定频率的信号、振动或放射〔passband〕The range of frequencies transmitted by a bandpass filter.通带：可经由带通滤波器传输的频率 |