“HⅡand HⅠ I regions”的概念、定义、翻译、参考文献-科学参考

单词	HⅡand HⅠ I regions
释义	HⅡand HⅠ I regions 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	Collins liquefier collis collision collisional activation collisional bremsstrahlung collisional broadening collisional cooling collisional damping collisional deactivation collisional energy collisional energy loss collisional energy transfer parameter collisional excitation collisional heating collisional ionization collisionally conserved quantity collisional orogen collisional plasma collisional radio source collisional shock wave collisional turbulence collision avoidance collision avoiding system collision between rotary and static parts collision boundaries

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。