She says the amount of space needed between the plants depends on how big you expect the heads to be.

VOA: special.2009.03.03

That space is about 20 to 40 nanometers, it's not a very big space, but it's a significant space.

这个空间距离大概有20到40纳米,不是很大 但是意义重大

耶鲁公开课 - 生物医学工程探索课程节选

And I want to stress this, we're going to come back to it later on in the term, so the way I'd like you to think about it for now, is that somewhere in the machine, there's a big space that contains all possible values.

我想要强调一点，我们在晚些时候,还会回头来讲这一点，因此现在,我需要你们形成这么一个观点，就是在计算机的某处，有一个包含了所有可能值的,很大的空间，好。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is a big change from earlier models where NASA led and controlled the development of space vehicles.

VOA: special.2010.04.28

But it's not a big con, because you can set up experiments in free space far from everything, where objects will, in fact, maintain their velocity forever.

但这并不是个反例,因为你可以在一个远离一切的空间里做实验,在那里,物体可以永远保持现有速度

耶鲁公开课 - 基础物理课程节选

So we all went up to the Space Needle to watch the fireworks and this big cloud moved in and covered the Space Needle and so we just kind of watched the clouds and that was it."

VOA: special.2010.07.02