检查饭店电脑系统数据备份，确保数据的安全和有效保存。
Examine the copy file of the hotel data bank to make sure that data are safely and effectively kept.
网络系统数据备份是保证信息系统数据安全的重要组成部分。
Network system data backup is an important part of information system data security.
介绍了汇文文献信息服务系统，阐述了该系统数据备份方法以及应用。
This paper introduces the Huiwen Literature Information Service System, and expounds the data backup method of this system and its application.
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