“library services for children and young adults”的概念、定义、翻译、参考文献-科学参考

单词	library services for children and young adults
释义	library services for children and young adults Encyclopedia 管理学图书馆少儿服务释 library services for children and young adults图书馆少儿服务图书馆通过专门设计的服务与活动，为少年儿童提供符合其特点的各类媒体资源服务，满足其信息、文化和娱乐的需求。
随便看	variable thrust rocket engine variable thrust rocket motor variable time scale variable transformation variable ultrafast photographic shutter variable ultraviolet object variable valve lift variable valve mechanism variable valve timing variable valve timing system variable-velocity star variable voltage variable water flow central air-conditioning system variable X-ray source variable γ-ray source variace-covariance matrix variance variance analysis variance analysis of one-way grouping data variance analysis of subgroup data in group variance analysis of two-way data variance-balanced block design variance between classes variance between clusters variance between laboratories

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。