“youth-and-old-age”的概念、定义、翻译、参考文献-科学参考

单词	youth-and-old-age
释义	youth-and-old-age Encyclopedia 农学百日菊释 youth-and-old-age百日菊菊科百日菊属一年生草本植物。农学百日草释 common Zinnia; elegant zinnia; youth-and-old-age百日草菊科百日菊属直立性一年生草本植物。又称步步高。
随便看	navigation and search on complex network navigation aqueduct navigation brain system navigation by earth reference navigation by map-matching navigation by space reference navigation channel of Xijiang River navigation clock navigation constellation navigation coordinate system navigation delay calibration navigation disease monitoring navigation electronic map navigation electronic warfare navigation element navigation engine navigation epidemiology navigation facility of fishing port navigation for the blind person Navigation Guarantee Center Navigation, guidance and control navigation information fusion navigation management in ancient China navigation mark navigation message

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。