The basic mode of long-range data communication and the composition of general system in remote-system is described;

介绍了遥测、遥控系统中远程数据通信的基本模式和一般的系统组成结构；

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The data replication not only reduces network lag and bandwidth consumption when accessing long-range data, but also improves load balance of network, security and reliability of data.

数据复制不仅可以降低远程访问数据的网络延迟及带宽消耗，还可以提高网络的负载平衡，并且提高数据的安全性、可靠性。

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Now the firm lets employees use a range of phones and tablets as long as sensitive data on them are encrypted and activity is logged in order to comply with regulations.

而现在，这家公司已允许员工们使用一定范围的手机和平板电脑——只要他们保证设备上的敏感数据是加过密的，而且用户们必须注册登录以保证他们能遵守规章制度。

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