该系统易于维护和升级，操作简单。
This system is easy to maintain and upgrade and its operation is very simple.
包括所以的软件发布升级，软件维护和应用软件。
Included may be also Software Release Upgrades, Software Maintenance and Application Software.
系统界面友好，使用方便，也可以方便地进行维护升级和扩展。
System friendly interface, easy to use, can also be easily extended to upgrade and maintenance.
设备采用积木式结构，方便升级和维护。
All the devices adopt blocking structure, can update and maintain comfortably.
网络系统操作包括：全球网络的远程安装、维护和对网络系统进行升级。
Network system Operation including installation, maintenance and upgrading the network system for global network remotely.
该系统具有便于后期的维护、扩充和升级的特点。
该系统具有便于后期的维护、扩充和升级的特点。
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