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单词
ionospheric propagation
释义
ionospheric propagation
ionospheric propagation
[
‚ī‚än·ə′sfir·ik ‚präp·ə′gā·shən
]
(communications)
Propagation of radio waves over long distances by reflection from the ionosphere, useful at frequencies up to about 25 megahertz.
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更新时间：2025/2/7 15:29:43