不存在非主属性对任一候选键滴部分函数依赖。

No non-prime attribute in the table is functionally dependent on a part (proper subset) of a candidate key.

youdao

当然，2008年候选人中的很多人有网站、一键捐款工具和社交网络的特色——甚至连约翰·麦凯恩都有这些特色，尽管他并没有亲自使用过电子邮件。

Of course, many of the 2008 candidates had websites, click-to-donate tools, and social-networking features — even John McCain, who does not personally use E-mail.

youdao

如果显示的单词不是你想要的，请按上键、下键或左、右键浏览可能组合的候选单词。

If the word shown is not the one you want, you can press UP or DOWN, or LEFT or RIGHT to browse the possible optional words.

youdao

如果显示的单词不是你想要的，请按上键、下键或左、右键浏览可能组合的候选单词。

If the word shown is not the one you want, you can press UP or DOWN, or LEFT or RIGHT to browse the possible optional words.

youdao