“ionosphere”的概念、定义、翻译、参考文献-科学参考

单词	ionosphere
释义	ionosphere [ī`an·ǝ´sfir] ^GEOPHYSICS That part of the earth's upper atmosphere which is sufficiently ionized by solar ultraviolet radiation so that the concentration of free electrons affects the propagation of radio waves; its base is at about 40 or 50 miles (70 or 80 kilometers) and it extends to an indefinite height.
随便看	wired-program computer wire drag wiredrawing wire-fabric reinforcing wire facsimile system wire flame spray gun wire-frame model wire fusing current wire gage wire glass wiregrating wire holder wire insulation red-tape operation red tetrazolium red thermit red thread red tide redtop grass reduce reduced characteristic equation reduced Compton wavelength reduced crude reduced cubic equation reduced distance

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