“proto-planetary nebula”的概念、定义、翻译、参考文献-科学参考

单词	proto-planetary nebula
释义	proto-planetary nebula Encyclopedia 理学原行星状星云释 proto-planetary nebula;proto-PNe原行星状星云中小质量恒星（0.8～8.0太阳质量）处在从渐近巨星支（AGB）恒星向行星状星云过渡的一个快速演化阶段（持续时间约1000年）的天体。 Astronomy proto-planetary nebula原行星状星云
随便看	Sports Culture Guide sports custom sports diplomacy sports disease prevention sports disputues sports economic organizations sports economy sports education sports emblem sports entertainment sports equipment sports ethics sports event information system sports event media operation sports events broadcasting Sports Federation and Olympic Committee of Hong Kong，China sports field per capita sports film sports fitness equipment sports for the disabled sports for the elderly sports for workers and staff members sports foundations sports funds Sports games

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。