About a dozen more officers were injured when the truck exploded and flipped over.

VOA: standard.2009.06.21

Another reason I wanted to point this out in terms of the polar coordinates that we're using, is I think they're actually flipped from what you're used to seeing in physics.

另一个我想指出,我们采用极坐标的原因是，我认为它们实际上是,从你们习惯于看到的物理学中出来的。

麻省理工公开课 - 化学原理课程节选

And then you'd expect a third person watching this to say, "Who cares? It's just--They're just doing this because of the coin they flipped."

你可能以为看这个问答的第三方会想，”这有什么关系，谁问谁答,只不过取决于那个硬币而已“

耶鲁公开课 - 心理学导论课程节选

It's kind of like , where you had side A,side B and you just flipped it over when you wanted to change your mood so to speak.

VOA: standard.2010.06.18

So the minus vector is the same vector flipped over, pointing the opposite way.

因此负矢量即为同一矢量的翻转,指向相反的方向

耶鲁公开课 - 基础物理课程节选

So just keep it in mind that it's flipped.

所以请记住它是衍生出来的。

麻省理工公开课 - 化学原理课程节选

And in fact, later experiments just flipped a coin.

甚至在后来的实验中直接抛硬币就行了。

耶鲁公开课 - 心理学导论课程节选