The requirement for data declaration vary among different programming languages but can include such values such variable name , data type , initial value , and size specifications, etc.

但是要包含这样的数值，比如：可变量的名称、数据方式、初始值以及尺寸规范等。

youdao

The reason that this is required is that an XML document might require information other than the business data and names — such as an XML declaration.

需要这个的理由是XML文档可能需要除业务数据及名字之外的信息——如XML声明。

youdao

Note the XML declaration at the start of the data.

注意数据开始部分的XML声明。

youdao

This declaration is largely backed up by epidemiological data, and will allow controlling the current outbreak and building a middle term, multisector action plan, tackling rabies through a systemic approach.

ECONOMIST: Letters