英语词汇“sporadic E layer”的读音、翻译、释义、用法及例句-智慧网

词汇	sporadic E layer
释义	sporadic E layersporadic E layer1.■时现E层(指地球上电离空气的E层内不时出现的一种强烈电离层)
随便看	backscratching back screen back scrubbing backseat back seat back-seat driver back-seated valve back selling back-selling back set backset backset bed back-set bed backset bedding backsetting back-setting effect backshaft backshank backsheesh back sheet back shield backshift back shift backshish back shooting

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