“银河系年龄”的概念、定义、翻译、参考文献-科学参考

单词	银河系年龄
释义	银河系年龄 Encyclopedia 理学银河系年龄释 age of the Galaxy银河系年龄从银河系诞生到现在所跨的时间长度。
随便看	mean distribution mean diurnal motion mean earth ellipsoid mean ecliptic sun mean electron concentration mean element mean entropy mean enveloping surface mean epoch mean equator mean equatorial sun mean equinox mean ergodic theorem mean-ergodic theorem mean error mean evolute mean extinction coefficient mean fiber length mean fictitious clock mean field mean field approach mean field approximation mean field game mean field theory mean-field theory

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。