“HⅡand HⅠ regions”的概念、定义、翻译、参考文献-科学参考

单词	HⅡand HⅠ regions
释义	HⅡand HⅠ regions Encyclopedia 理学星际物质释 HⅡand HⅠ regions电离氢区和中性氢区以氢（电离氢和中性氢原子）为主要成分的星际气体云。
随便看	communicationplanning communication policy communication process communication process model Communication Research communication rules communications communications and telecommunications value-added services communications and transportation law communication satellite communications circuit Communications Clique communications countermeasure communications hub communications in underground mine communications management for the Arts Communications Museum Communication Sociology communications of concentrators communication software communications security communications signalling tester communication standard communication statistics communication studies

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