She derived another formula relating the number of folds possible in one direction (n) to the minimum possible length of material (l) and the material's thickness (t)

她推导出了另一个关于折叠次数（n）、现实的最小长度（l）以及材料厚度（t）的关系式。

youdao

The thrust reverser (T/R) system controls the direction of the fan air exhaust to make forward or reverse thrust.

反推装置（T／R）系统控制风扇叶片气流 的排气方向从而实现正推力和反推力。

youdao

Of course, T-bond futures can be very volatile and can trade several tics in either direction in a matter of seconds.

当然，债券期货的波动很大，每秒钟会向任意方向波动几个基点。

youdao

But I think we need to step back and acknowledge that we don't know what direction the hurricane -- or the tropical storm, if it becomes a hurricane, will take.

WHITEHOUSE: Press Briefing

So this looks like --I wouldn't say a major new direction, but it is something that is a major priority for you over the next number of years, is -- am I capturing it right?

WHITEHOUSE: President Obama at the APEC Business Summit

Regardless, if any of this is even remotely true (and not another Photoshop from someone's mother's basement), Apple is indeed taking its laptops in an Air direction, which isn't surprising -- but signs of these being the end-result of new manufacturing process?

ENGADGET: More pics of Apple's supposed new laptops surface