Context-switch time is overhead; the system does no useful work while switching.

上下文切换的时间开销较重；在切换时，系统没有做有用的工作。

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A research shows that switch time fuzzy control not only improves control accuracy of temperature, but also simplifies control rule.

研究表明，开关时间模糊控制不仅提高了温度的控制精度，而且简化了控制规则。

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The results show that: the switch time of air and the bulk of storage bed play important roles as regards its thermal performance characteristics.

结果表明，空气的换向时间、蜂窝陶瓷蓄热体换热器的体积等是影响其温度效率和热回收率的重要因素。

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Now let me switch to the implicit purposes of socialization and time-out.

现在转到深层目标,社会化和腾时间。

麻省理工公开课 - 媒体、教育、市场课程节选

Imagine I have a little lamp, a little goose- one of those little gooseneck lamps, I'd put it on the table here, I'd put the height about a f-- about a foot off the table. And if I was really good, - I could hit, or time it so that when I hurt- yeah, try again. When I turn this on switch on in the lamp, at exactly the same time, I'm going to hit a key on my computer and start it running.

想象下我有一个那种小雁颈台灯-,我把它放在桌子上，大概离桌子，有一英尺那么高吧,这样挺好的，我可以打开-,或者关闭这灯,并在这同时，我可以让我电脑,开始运行。

麻省理工公开课 - 计算机科学及编程导论课程节选

Well worth the effort to switch on every time you go for a run.

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It gets 48 miles per gallon and can switch at any time between using veggie oil or diesel for fuel.

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Even for a few days after the time switch, motorists should exercise extra caution behind the wheel, especially commuters who have worked a long day.

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