The null content of a textbook means such a kind of content that should be contained in the textbook but not.

教科书的空无内容是教科书中应该呈现却没有呈现的内容。

youdao

The null content of a textbook means such a kind of content that should be contained in the textbook but not.

空无课程是指学校中应该有而没有的课程，教科书的空无内容是指教科书中应该呈现而没有呈现的知识。

youdao

In addition the queries which are sent to remote data sources are further optimized by the execution layer based on cache content and advanced null suppression logic.

另外，被发送到远程数据源的查询由执行层根据缓存内容和高级空抑制逻辑进行进一步优化。

youdao

If the resolved context variable content is null, no replacement occurs and the variable name remains unchanged in the query string (including the "%" signs).

如果解析后的上下文变量内容为空，则不会发生替换，并且变量名称在查询字符串中保持不变(包括“%”符号)。

youdao

However in this case, the link's ref attribute will be set to the value "null," and the link's text content will be hidden unless a flag to show null-link content is set to true.

但是，在这种情况下，这个链接的ref属性会设置为“null”值，而且链接的文本内容会隐藏起来，除非将显示空链接内容的标志设置为true。

youdao

However in this case, the link's ref attribute will be set to the value "null," and the link's text content will be hidden unless a flag to show null-link content is set to true.

但是，在这种情况下，这个链接的ref属性会设置为“null”值，而且链接的文本内容会隐藏起来，除非将显示空链接内容的标志设置为true。

youdao