英语词汇D region怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	D region
释义	D region D区(离地球表面约60-90公里高度处的电离层最低部分；亦作D layer)
随便看	pergelisol pergelisols pergola pergolas Pergolesi Pergolesi,Giovanni Battista pergunnah perh. perhaps perhapses per head perhydrogenate perhydrogenated perhydrogenates perhydrogenating perhydrogenation perhydrogenation perhydrogenations perhydrol peri Peri peri- perianal Periander perianth

英汉双解词典包含548777条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。