“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	method of spherical means method of splitting of the square method of splitting operators method of stages method of stationary phase method of statistical experiment method of statistical testing method of steepest ascent method of steepest descent method of steps method of straight lines method of stratified sampling method of streamline curvature method of subdivision method of substitution method of successive approximation method of successive approximations method of successive division method of successive elimination method of successive generations method of successive iteration method of successive relaxation method of successive substitutions method of summation method of summation by parts

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