Secondly, Topic Maps proprietary glossaries ,Topic Maps language XTM1.0 and Topic Maps query language tolog are introduced.Topic Maps query language tolog is a language which is like SQL.

• 接着，详细介绍了主题地图的专有术语，主题地图语言XTM1.；0语法和使用方法，主题地图查询语言Tolog语言，这是一种类SQL的语言。