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1·After several editions, it become the most popular exploiture flat by improving a lot in videotext programme.

通过多个版本的升华，它在可视化开发程度上有了极大的提高，从而成为目前广泛采用的开发平台。

2·Minitel succeeded Videotext as online service making online purchases, check share market, search telephone directory and could even chat.

Minitel继Videotext推出在线购物，查询股票，搜索电话目录等服务，甚至可以在线聊天。

3·But through the analysis of the data model for activity-based, the author found that the current models has some drawbacks on the dynamic character, videotext and statistic analysis and so on.

但作者对现有的基于行为的时空数据模型的分析中发现已有的模型在个人行为的动态性特征体现、行为可视化以及行为活动的统计、分析等技术上存在一定的欠缺。