The difference between a hard switching and quasi resonant flyback converter is the turn on time point of the primary switch.

硬开关和准谐振反激变换器之间的差异在于一次侧开关的开启时间点。

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By the time Ben was tired, Tom had exchanged the next turn with Billy Fisher for a good kite, and then Johnny Miller, and so on.

当本累了的时候，汤姆已经和比利·费舍尔交换了一个不错的风筝，然后是约翰尼·米勒等人。

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These switches turn on and off all the time, controlling how our cells work and how we respond to our environments.

受控于我们传感器的工作或者我们对周围环境的反应，这些开关可以随时打开或关闭。

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If you haven't seen Law & Order, the way to see Law & order is to go to a random TV set, at a random time, and turn on a random channel.

你要是没看过,随便去找个电视机,在任意时段任意频道都能看到

耶鲁公开课 - 博弈论课程节选

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

Nine of Kent's players failed to turn up on time for the start of the second day of their match against Surrey, despite having left their Bayswater hotel at 0830BST.

BBC: Cricket finds new excuse

For example, I was horrified to find out that there is something called Jupiter grades out there, where a parent is notified on a daily, sometimes hourly basis every time their child has an assignment due, or does not turn something in on time.

FORBES: CNBC Exposes Cheating In America

But would you at all agree with critics who say you can log onto the Internet at any time during the day, you can turn on cable television at any time and see and hear these images that are being questioned right now?

WHITEHOUSE: Press Briefing