And these are using the technology to augment the real experiments with virtual atoms that show these things are really there but you can't normally see.

他们在使用这些技术,来积累实际经验,通过模拟原子,使这些东西实际存在,但一般不可见。

麻省理工公开课 - 媒体、教育、市场课程节选

We're going to keep using the things that exist in space, virtual or not, and the things that unfold in time in their relationship with each other as we continue to try to understand these basic principles which shape so much of subsequent literary theory. Thank you.

我们将继续解释事物的存在，无论它们是否可见，我们会学习语言在一段时间里的关系,随着我们继续学习这些基本的概念,我们会进一步理解文学理论，谢谢。

耶鲁公开课 - 文学理论导论课程节选