Spinning down the hard disk and setting a reduced CPU speed setting can be performed for any time range when the CPU and disk activity is below a set threshold.

让硬盘停转并且降低CPU速度可以在CPU及磁盘活动低于设定阈值的任何时间范围内执行。

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Flexible for length and speed setting, High efficiency.

长度、速度参数设置灵活，生产效率高。

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The PC software has the function of speed setting, forward moving, back moving, left turning, right turning and stopping.

系统软件实现了小车速度的调节、前进、后退、左转、右转和停止等功能。

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And last up, under options you can get even more speed by setting frequencies over 500 MHz, this might not work, it might mess up your device and you'll need to soft reset, but it's fun to play around with.

ENGADGET: pt's "how to Tuesday" Overclocking your Pocket PC

States and cities consider several factors before setting speed limits and these factors can vary.

FORBES: The High Price Of Speeding

Every state has a Department of Transportation (DOT) with a State Traffic Commission (STC) that is responsible for setting speed limits on certain state-maintained roads.

FORBES: The High Price Of Speeding