“发射线星云”概念、定义、翻译-科学时代

单词	发射线星云
释义	天文学词汇手册发射线星云 emission-line nebula
随便看	reserve reserve reserve reserve reserve reserve reserve reserve account reserve army reserve army of labour reserve army of labour reserve auction reserve bank reserve bank reserve bank reserve bank reserve battery reserve bunch reserve by revaluation reserve cell reserve centre reserve channel reserve clause reserve collection reserve coppice method

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。