“Hale sector boundary”概念、定义、翻译-科学时代

单词	Hale sector boundary
释义	天文学词汇手册 Hale sector boundary 海尔扇形边界
随便看	social tradition social trend social trend social type social unconsciousness social unit social unity social usage social utility social utility theory social value social value social value social wants social welfare social welfare social welfare social welfare social welfare expenditure social welfare function social welfare function social welfare principle of taxation social welfare support social well-being social well-being

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。