雷电波的视在波头时间和视在波尾时间与理论波头时间和理论波尾时间没有直接的数学关系。

There is not direct mathematical relations among virtual front time, virtual tail time and theoretical front time, theoretical tail time of lightning impulse.

youdao

准确说，我大部分时间都在研究宇宙大爆炸理论和宇宙的起源。

I guess that would be fair to say I spent most of my time studying the Big Bang theory and where our universe came from.

youdao

除理论之外，这种专注表现在本身复杂性的理论，它根据它们运行的时间和空间需求来组织算法。

At the theoretical end, this focus manifests itself in complexity theory, which groups algorithms according to their time and space requirements for execution.

youdao

I then want to take the time to consider whether or not we should believe this and how well it fits with our modern science.

接下来的时间我想来和大家讨论一下,弗洛伊德的理论是否可信,以及弗洛伊德的理论,在多大程度上是符合现代科学的。

耶鲁公开课 - 心理学导论课程节选