| 单词 | sky wave |
| 释义 | sky wavenoun Radio.a radio wave propagated upward from earth, whether reflected by the ionosphere or not. Origin of sky waveFirst recorded in 1925–30 Words nearby sky waveskysurfing, sky train, skytrooper, skywalk, skyward, sky wave, skyway, skywrite, skywriting, SL, SLA Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for sky wavesky wave nouna radio wave reflected back to the earth by the ionosphere (ionospheric wave), permitting transmission around the curved surface of the earthCompare ground wave Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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