摘要
从能显示地描述数据和事务的定时性和时间约束，准确地刻划事件、条件、活动及三者之间的关联性的角度出发。
Based on the data of description displayed, affairs on time and time restraint in the pattern of displayed, detail the event correlation, condition, activity and the relationship among them, the paper shows its construction model and ) Abstract description.
出处
《中南民族学院学报（自然科学版）》
1997年第4期42-45,共4页
Journal of South-Central University for Nationalities(Natural Sciences)
基金
国家自然科学基金
