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单词 sky wave
释义
Sky Wave
nnoun.phenomenona radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface
Hypernyms:radio emission radio radiation radio wave
Inherited Hypernyms:sky waveradio waveelectromagnetic radiationradiationenergyphysical phenomenonnatural phenomenonphenomenonprocessphysical entityentity
Direct Hyponyms:ionospheric wave
Full Hyponyms:
ionospheric wave
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更新时间:2025/3/12 6:45:26