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| 单词 | sky wave |
| 释义 | sky wave (once / 11819311 pages) n WORD FAMILY sky wave: sky waves n a 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 Hypo|Hyper ionospheric wave a sky wave that is reflected by the ionosphere radio emission, radio radiation, radio wave an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m |
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