So again, we should be able to check all of our formal charges and make sure they add up to 0, which they do, and that makes sense, because we have a neutral atom in terms of thionyl chloride.

因此同样地，我们可以检验一下,我们所有的形式电荷是否正确,确保它们加起来等于零，而它们确实是这样，这是合理的，因为亚硫酰氯是一个中性原子。

麻省理工公开课 - 化学原理课程节选

If we did a--if we go another two decimals-- if we did a million policies, then we would--this would almost just be a spike here at that point, so that's the concept of insurance.

如果我们在一万后面加两个零,如果我们签了一百万份保单,那么这条曲线基本就是尖形了,这些都是保险的相关概念

耶鲁公开课 - 金融市场课程节选

q Work is zero. Delta u is w plus q, work plus heat. This is zero, this isn't.

功是零，△U是w加，功加上热量，这个是零。

麻省理工公开课 - 热力学与动力学课程节选

It's very clear that if you want to take A and ask, "What should I add to A so I get the null vector?"

显然,你们会拿 A 来问,"拿什么来加矢量 A 可以得到零矢量呢"

耶鲁公开课 - 基础物理课程节选

That says that minus q1 prime plus q1 is greater than zero.

这就是说1,负q1一撇加q1大于零。

麻省理工公开课 - 热力学与动力学课程节选

And so, we can immediately write this du and then we can write du for the universe, which is system plus surroundings is equal to zero.

因此，我们可以立刻写出这个等式,然后可以写出总的的，也就是系统加环境的du，等于零。

麻省理工公开课 - 热力学与动力学课程节选

U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.

什么是零？是U，因为,等于q加w，热量和功，但这是绝热的，所以系统与环境间没有热量交换；,同时它是灯体的，所以也没有pdV形式的功。

麻省理工公开课 - 热力学与动力学课程节选