This system model include the WEB server, application server and directory server. System provide virtual classroom, and permit client to set up the virtual classroom by himself.

在该模型中，包含有WEB服务器、应用服务器和目录服务器，系统提供了一个虚拟教室的功能，客户能够自建虚拟教室。

youdao

This system model include the WEB server, application server and directory server. System provide virtual classroom, and permit client to set up the virtual classroom by himself.

在该模型中，包含有WEB服务器、应用服务器和目录服务器，系统提供了一个虚拟教室的功能，客户能够自建虚拟教室。

youdao