“sporadic reflections”的概念、定义、翻译、参考文献-科学参考

单词	sporadic reflections
释义	sporadic reflections [spǝ`rad·ik ri`flek·shǝnz] ^{ELECTROMAGNETISM} Sharply defined reflections of substantial intensity from the sporadic E layer at frequencies greater than the critical frequency of the layer; they are variable with respect to time of occurrence, geographic location, and range of frequencies at which they are observed.
随便看	bell mouth bell nipple bellows bellows expansion joint bellows gage bellows gas meter bellows seal bells and whistles bell screw bell-shaped curve Bell's law bell socket Bell's theorem bell tap bell transformer bell-type manometer bell wire belly Belondiroidea belonephobia Beloniformes belonite Belostomatidae below minimums belt

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