“HⅡ区和HⅠ区”的概念、定义、翻译、参考文献-科学参考

单词	HⅡ区和HⅠ区
释义	HⅡ区和HⅠ区 Encyclopedia 理学星际物质释 HⅡand HⅠ I regionsHⅡ区和HⅠ区以氢（电离氢或氢原子）为主要成分的星际气体云。又称电离氢区和中性氢区。
随便看	forestry of Canada forestry of Chongqing city forestry of Finland forestry of Fujian province forestry of Gansu province forestry of Guangdong province forestry of Guangxi forestry of Guizhou province forestry of Hainan province forestry of Hebei province forestry of Heilongjiang province forestry of Henan province forestryof Hubei province forestry of Hunan province forestry of Japan forestry of Jiangsu province forestry of Jiangxi province forestry of Jilin province forestry of Korea forestry of Liaoning province forestry of Ningxia Autonomous Region forestry of Qinghai province forestry of Russia forestry of Shaanxi province forestry of Shandong province

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。