John Silvia is the senior economist at Wells Fargo Bank: "Private payroll gains continue to be modest and I would say it does raise flags for those super optimists who were looking for a V-shaped recovery and thinking that we are going to go back to normal very quickly in the US.economy."

VOA: standard.2010.07.02

Cv So this will give us something about C sub v.

从这里可以计算出。

麻省理工公开课 - 热力学与动力学课程节选

So, in fact, as Thucydides tells us beautifully in Book V, when the two armies actually hit each other they have already made a slight turn to the right.

因此,事实上,像修西得底斯在第五册里优雅描述的那样,当两军真正开始接触时,他们已经略微向右转了

耶鲁公开课 - 古希腊历史简介课程节选

It just turns out that if you put the v^2 and you put the r, and r is 93 million miles, you will find the acceleration is small enough for us to ignore.

这样的话,如果你把 v^2 和 r 代进去,r 是 9300 万英里,你会发现加速度小得足以被忽略

耶鲁公开课 - 基础物理课程节选