“定题服务”的概念、定义、翻译、参考文献-科学参考

单词	定题服务
释义	定题服务 Encyclopedia 管理学定题服务释 selective dissemination of information定题服务文献信息机构根据用户研究课题需求，通过对信息的收集、筛选、整理并定期或不定期地提供给用户，直至协助课题完成的一种连续性专题服务。
随便看	primary standard of angle metrology primary standard of diffuse transmitted visual primary standard of exposure primary standard of flatness primary standard of illuminance primary standard of laser small angle primary standard of laser wave length primary standard of length primary standard of line angle primary standard of luminance primary standard of luminous exposure primary standard of luminous intensity primary standard of microwave phase shift primary standard of multi-teeth index table primary standard of spectral irradiance primary standard of spectral radiance primary standard of taper gauge primary standard of total luminous flux primary standards of national defense primary star primary station primary station, master station primary stress primary structure primary structure analysis of monoclonal antibody

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。