For availability, this computing system was a redundant design, with two sets of processors and buses and the ability to switch between a master and a slave if the master was found to be unresponsive.

就可用性而言，这个计算系统是一个冗余设计，有两组处理器和总线，能够在主机无应答的情况下在主机和伺服机之间进行切换。

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If your browser supports alternate style sheet switching, you can even view this master file, and switch between the three different versions by alternating between style sheets.

如果你的浏览器支持多个样式表的切换，你甚至可以靠它在多个版本的导航栏之间自由切换。

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Clients became convinced that no one firm could produce good performance in every asset class, nor could they master the art of timing the switch from one asset to another.

投资者们也逐渐意识到没有一家公司可以在每个资产级别上都有好的收益，而且它们也并不能把握好从一种资产转到另一种资产的时机。

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Toward the right, you've got the USB type B connector that runs to your laptop, the AC adapter jack, and the master power switch.

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Once there, I realized that with the master switch off, my iPhone would not charge.

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After 10 infuriating minutes of fiddling, I got up and found the master switch.

WSJ: Tatiana de Rosnay on Horrible Experiences in Upscale Hotels | Traveler's Tale