It wrote that "robot" comes from the Greek word for "slave" and humans have nothing to fear from robots, which are only here to help humans.

它写道，“机器人”一词来自希腊语，意思是“奴隶”，人类对机器人没有什么可害怕的，它们只是来帮助人类的。

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There are uncertainties in the model of a teleoperation robot system and communication time delays in the communication channels between the master and slave robot.

遥操作机器人系统的通信通道中存在通信时延，而且机器人模型存在不确定性，以致可能造成系统不稳定和操作性能降低。

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Secondly, the factors that influence the errors of the end-effector of the master-slave robot are analyzed, various error modeling methods of robot are compared.

其次，分析了影响主从机器人末端执行器的误差的因素，比较了各种机器人误差建模的方法。

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