蓝色的部分是公有标识符；绿色的部分是系统标识符，它是个URI。
The section in blue is called the public identifier, the green part is the system identifier, which is a URI.
本文对知识产权中的专有领域与公有领域的界限问题进行系统的研究，全文共分为绪论、四章、结论。
This exclusive area of intellectual property in the public domain and the boundaries of the research system issues, This paper is divided into introduction, four chapters, the conclusion.
在信息系统的开发中，经常会对多个表的公有字段进行查询。
In the development of MIS, the query of the information from some public fields of tables is often needed.
应用推荐