将定时器设定为20分钟。

Set a timer for 20 minutes.

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基于Webkit的技术公开，苹果为移动网络浏览器设定了标准。

By making its WebKit technology open, Apple has set the standard for mobile web browsers.

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通过微电脑控制器设定开机时间，可以设定若干个开机停机时间。该机会根据您所设定的时间自动开机，关机。

Set the boot time by microcomputer controller, you can set a number of power-down time. The boot automatically set according to your time off.

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Maybe you don't control thermostats in your dorm room, some of you do and some of you don't probably, and maybe it doesn't work very well so it might not be a good example, but imagine a perfect thermostat that you set for a temperature and then the temperature stays the same inside the room no matter what the temperature is outside.

可能你根本就不理卧室里的恒温器,有些人去调它,有些人就置之不理,可能它压根就是坏的,所以这个例子也许并不恰当,但你还是想象一个完美运行的恒温器,你设定温度后房间里的温度就保持不变,不管外面温度是多少

耶鲁公开课 - 生物医学工程探索课程节选