link constraint meaning in English

链接限制

Secondly , using web data charactors , the paper is to build relational abstractions of large and fairly well - structured web sites and to use an optimizer to translate declarative queries on these relational abstractions to efficient navigation plans . we use a simple subset of the araneus data model ( adm ) to describe web sites . this adm scheme is augmented with link constraints that capture the redundancy present in many web sites . this paper also use inclusion constraints that state that all the pages that can be accessed using a certain path can also be accessed using another path
本论文使用adm ( thearaneusdatamodel )数据模型的一个子集来描述web网站。这种基于叭花b视图高效查询系统的研究摘要adm数据模型是依靠增加链接约束来获取网站上的冗余。论文使用包含约束( inclusionconstraini ) ，它规定所有能被一个确定的路径访问到的页面，同样也可以使用另一条路径访问到页面。