单词：database model
database model的用法和样例：
例句
- A method of handling NULL value in uncertain database systems was put forward, which could improve the problem of handling NULL value.为此，给出了一种非确定性数据库系统中空值处理方法，改进现有非确定性数据库模型中对空值处理不完善的情况。
单词：database model 相关文章
[00:00.00]Chapter 9 Database Management System [00:03.07]第九章 数据库管理系统 [00:06.14]Dialogue 1 [00:07.82]句型1 [00:09.51]A:Hey ,Greg , Check out my new wallpaper! [00:12.43]嘿，Greg，看一下我屏幕的新背景画面！ [00:15.
电脑英语
New Brain-Image Database Could Assist Chronic Pain 新的脑图像数据库能帮助治疗慢性疼痛 From VOA Learning English, this is Science in the News. Im Christopher Cruise. And Im Faith Lapidus. Today we tell about a World Health Organizatio
2014年VOA慢速英语(二)月
By Deborah Block Washington, DC 24 January 2006 watch Bird Flu Database report A computer database in the United States is helping researchers find a human vaccine for the bird flu virus -- a disease
2006年VOA标准英语（一月）
SCOTT SIMON, HOST: Police departments across the U.S. are using electronic databases to store intelligence on gang activity. These databases have been heralded by police as a crime fighting tool. But some activists in Chicago claim they do more harm
2018年NPR美国国家公共电台1月
BEIJING, Sept. 26 (Xinhuanet) -- Fu Ming'ai was reunited with his family on Sunday after 22 years. He is one of the more than 1,400 abducted children who were helped by a national DNA database, which helps match trafficked children and their parents.
英语新闻
The director of the United Nations Industrial Development Organization has met with Kenyan finance officials to discuss the launch an African-wide database designed to help governments promote investment in their countries. The database contains info
英语新闻