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单词
directional filter
释义
directional filter
directional filter
[
də′rek·shən·əl ′fil·tər
]
(electronics)
A low-pass, band-pass, or high-pass filter that separates the bands of frequencies used for transmission in opposite directions in a carrier system. Also known as directional separation filter.
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atcr
atcra
atcrb
atcrbs
atcrbs iff mark xii system
atcrc
atcrd
atc requests
at cross purposes
at cross-purposes
atcru
atcs
atcsa
atcscc
atc services
atcsi
atc sorts automated formatting system
atcsr
atcss
atct
atctc
atctd
atc time & cost accounting system
atc transponder
atcts
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更新时间:2026/3/23 6:26:58