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单词
h carrier system
释义
H carrier system
H carrier system
[
¦āch ′kar·ē·ər ‚sis·təm
]
(communications)
Low-frequency carrier system which provides one carrier channel, using frequencies up to about 10 kilohertz, by means of effective four-wire transmission on a single open-wire pair.
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更新时间:2025/3/17 6:50:22