建立这些异构型数据库的网络，实现它们之间的互连通信与分布式访问，这是分布式数据库研究的一个重要方面。

It is an important research area to establish the communication between and tc have the distributed access to these databases.

youdao

建立这些异构型数据库的网络，实现它们之间的互连通信与分布式访问，这是分布式数据库研究的一个重要方面。

It is an important research area to establish the communication between and tc have the distributed access to these databases.

youdao