当有线网络不可使用时，如在战场通讯和紧急救援等任务中，移动自组网络提供了一种可行的地面通信和信息存取技术。
When wired networks are not available, as in battlefield communication and emergency search-and-rescue scenarios, MANETs provide a feasible way for communication and information access.
本机电脑上执行的应用程序可以存取例如档案系统之类的资源，但从网际网路执行的应用程序则不可以。
An application running from the local computer can access resources such as the file system, but an application running from the Internet cannot.
衍生类别的存取范围不可大于其基底型别的存取范围。
Derived classes cannot have greater accessibility than their base types.
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