Production R & D self-locking key switch;

生产研发自锁按键开关；

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Any other key switch required to operate or service elevator.

任何其他电梯运行和维护所需的钥匙开关。

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A micro pressure key switch used for the electric running machine is provided.

一种可用于电动跑步机的微压力按键开关。

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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

Matias says it spent more than two years working on a new type of key switch -- a modified ALPS switch it's dubbed Quiet Click -- and it has indeed come up with something unique.

ENGADGET: Matias Quiet Pro review: a mechanical keyboard with less clickety-clack

The key change is a switch from volume to quality.

FORBES: Quality vs Quantity

For Social Security, Obama plans to propose a switch to a key Republican request called "chained CPI, " which is an inflation formula.

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