How to insure data completeness of data base system is a important subject of data base system.
如何保证数据库系统的数据完整性是数据库系统的一个重要课题。
Aathor used the method of documentary metrology, counted and analysed 388species subject serial of documental data base in water-saving agriculture.
采用文献计量学方法，对节水农业文献数据库涉及的388种专题期刊进行统计、分析。
The technical data will be changed with improvement of the process, please base on real subject.
设备技术参数随着工艺的改进而有所改变，以实物为准。
The technical data will be changed with improvement of the process, please base on real subject.
设备技术参数随着工艺的改进而有所改变，以实物为准。
应用推荐