主要功能是信息发布，留言本，信息分类。煤矿安全实时监控系统-Main function is to disseminate information, guestbook, and information classification. Coal mine safety monitoring system

是一个JavaWeb门户网站开发系统，可作为开发门户网站的模板，具有登陆，修改，留言等功能-JavaWeb portal is a development system can be used as a template to develop portal, has landed, modify, comments and other features

无需注册的留言系统，可更改为免注册的用记登记系统-No registration message system, you can change to avoid registration with the registration systems in mind