(You can also embed the three final lines of the script in a loop, dynamically change SOURCE, and back up a series of separate directories on the same system.) Here's how the backup works.

(还可以把脚本的最后三行嵌入一个循环，动态地修改SOURCE，从而备份同一系统上的一系列目录)。

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Simulation of a remote control system of unmanned aircraft with network distributed computing and three dimensional dynamic display and man in loop real time operation is studied.

研究了一种采用网络分布计算，具有三维动态显示、实时操纵和人机闭环的无人机虚拟遥控仿真系统。

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Considering the three different moving processes, complete mathematic model of controlled system that includes velocity loop of alternating current servomotor, is established.

针对三个不同的运动阶段，建立了包含交流伺服电机速度环的被控系统的完整的数学模型。

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