“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.
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