“photoelectric retrieval tool”的概念、定义、翻译、参考文献-科学参考

单词	photoelectric retrieval tool
释义	photoelectric retrieval tool Encyclopedia 管理学光电式检索工具释 photoelectric retrieval tool光电式检索工具以文献缩微品作为文献库，利用光学、电学手段或设备从中查找信息的一种机械检索工具。又称缩微式检索工具。
随便看	least element least favorable distribution least favorable prior distribution least fixed point least group congruence least harmonic majorant least harmonic majorant function least horseshoe bat least ideal least integer least iteration method least majorant least-mean-square least mean squared error prediction least-mean-square, LMS least median of squares least nonnegative residue least number operator least number principle least pepperwort least period least positive residue least prime least prime factor least quantum system

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。