“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	hyperbolic catenary hyperbolic closed orbit hyperbolic collineation hyperbolic cologarithm hyperbolic comet hyperbolic conchoid hyperbolic cone hyperbolic constant hyperbolic convexity hyperbolic coordinates hyperbolic coordinate system hyperbolic corner hyperbolic cosecant hyperbolic cosine hyperbolic cosine integral hyperbolic cotangent hyperbolic cube hyperbolic curve hyperbolic cylinder hyperbolic cylinder coordinate hyperbolic cylindrical surface hyperbolic decline hyperbolic defect of a triangle hyperbolic differential equation hyperbolic differential operator

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。