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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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