“假”数据不能代表真实数据在页面上会占据的空间。

"Fake" data doesn't represent the actual space on the page that would be taken up by realistic data.

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实空间是指实体所占据的空间；虚空间是指实体所限定的空间。

Space of entity is the space occupied by entity, while space of emptiness is the space limited by the entity.

youdao

使用X线的引导，术者在原先被自身椎间盘占据的空间植入人工椎间盘。

Using X-ray guidance, the surgeon inserts the artificial disc into the space previously occupied by the natural disc.

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This is the fact that we occupy a finite volume in space, because they're little hard spheres in this molecule.

这是由气体分子在空间中,占据有限体积造成的,因为事实上它们是硬的小圆球。

麻省理工公开课 - 热力学与动力学课程节选

I mean, if the energy is lower to occupy a smaller volume, then if I have this room and a bunch of molecules of oxygen, and nitrogen and what have you in the air, and there are weak attractions between them, why don't they all just sort of glum together and find whatever volume they like.

我的意思是，如果占据小的体积会使能量降低，如果我有这样一个空间,和一些氧气，氮气和其他空气中有的气体，并且分子之间还有微弱的相互作用，为什么他们不黏在一起,然后占据他们所想要占据的体积。

麻省理工公开课 - 热力学与动力学课程节选