“Ursa Major group”概念、定义、翻译-科学时代

单词	Ursa Major group
释义	天文学词汇手册 Ursa Major group 大熊星群，大熊星系群
随便看	environmental self-purification environmental self-purification environmental service environmental service environmental service project environmental setting environmental simulation environmental simulation environmental sociology environmental sociology environmental soil science environmental standard environmental statistics environmental strategy environmental strategy environmental strategy environmental stress environmental stress environmental stress cracking environmental stress screening environmental stress screening--environmental stress screening（ESS） environmental stress screening（ESS） environmental study environmental study environmental survey satellite

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。