manual retrieval造句

abstract : the basic theory and function of cd retrieval and systemic constitution of multimedia searching databases cd co-developed by the author and tsinghua university is stated . the system consists of load, databases, html browser, editing and print . the system almost holds out multimedia format and has powerful retrieving function, it not only involves all methods of manual retrieval, but also carries out logic and mixed retrievals . the process in fact is one during which data are matched . the result shows : cd databases make retrieving popularized, simplified and have vast foreground in storage
文摘:介绍了作者与清华大学合作开发的多媒体全文检索数据库光盘的系统组成与光盘的检索功能及原理.系统由标引系统、资料建库系统、超文本浏览器、编辑出版系统组成.该系统几乎支持所有的多媒体格式，具有强大的检索功能，不仅囊括了手工检索的全部方法，还可进行模糊逻辑检索和任意混合检索.其检索过程实际是一个数据匹配的过程.实践证明，光盘数据库使检索大众化、简单化和普及化，在信息储存方面前景广阔
It's difficult to find manual retrieval in a sentence. 用manual retrieval造句挺难的