接下来的内容里研究了交通地理信息系统的关于数据库的两个问题，即如何从大量的数据信息中提取有效信息和如何表达交通信息的时间特性这两个问题。

The focus of the research into new GIS-T database is the management of temporal and history data and information that comes from many kinds of resource and services for all kinds of users.

youdao

接下来的内容里研究了交通地理信息系统的关于数据库的两个问题，即如何从大量的数据信息中提取有效信息和如何表达交通信息的时间特性这两个问题。

The focus of the research into new GIS-T database is the management of temporal and history data and information that comes from many kinds of resource and services for all kinds of users.

youdao