【摘要】 首先介绍已有的时态关系表示方法，并比较各时间模型的特点，在此基础上，结合多媒体开发实例提出媒体时态关系表示在多媒体应用程序制作过程中的应用。更多还原

【Abstract】 This paper introduces and evaluates the existing models of time relatons’ representation by their expressiveness. Based on the features of those models and the multimedia application, temporal model TSPN is used to express multimedia items. This paper will demonstrate the synchronization of some practical multimedia applications with TSPN.更多还原