It is also a meta - marked language , i . e . it defines what is used to define other semantic and structural marked languages related with special fields 它也是元标记语言,即定义了用于定义其他与特定领域有关的、语义的、结构化的标记语言的句法语言。
Part of the http header . this enables browsers to determine the encoding without a meta tag or having to deduce the correct encoding from the content 这使得浏览器能够在没有元标记的情况下,或者在不必从内容推导正确编码的情况下,就可以确定该编码。
In addition , many , but not all , search utilities also reference metatags - - invisible html tags within documents that describe their content - - as a way to control how content is indexed 此外,很多(但不是所有的)搜索实用程序也引用元标记(文档中用来描述其内容的、看不见的html标记) ,作为控制内容如何编索引的方法。