1) link type declaration subset
![点击朗读](/dictall/images/read.gif)
链结型别宣告子集
2) link type declaration subset
![点击朗读](/dictall/images/read.gif)
链接型别宣告子集
3) link type declaration
![点击朗读](/dictall/images/read.gif)
链结型别宣告
4) link set declaration
![点击朗读](/dictall/images/read.gif)
链结集宣告
5) active link type declaration
![点击朗读](/dictall/images/read.gif)
现用的链结型别宣告
6) document type declaration subset
![点击朗读](/dictall/images/read.gif)
文件型别宣告子集
参考词条