After this test we can calculate: It takes 40 minutes to braise a chook by a normal boiler, but it only needs 15 minutes by the flameout reboiler.
通过这个实验我们来算一算:采用普通锅炖鸡需要花费40分钟,而熄火再煮锅只需15分钟。
Before we do the test, we're going to calculate what we would predict, so when we do the demo it will be meaningful.
在我们做测试之前,我们先算一下我们能预知什么,这样在进行演示时会是有意义的。
So we know how to calculate it. Make sense?
我们知道如何计算这个物理量,对吗?
And an electron is something where, i n fact, we might be able to, if we calculate it and see how that works out, actually observe some of its wave-like properties.
如果我们对电子做计算,并且知道如何算出来的,那么我们是可以观测到,电子的一些波动性质的。
Now remember, we went through before how it's a state function but to calculate it, you'd need to find a reversible path, along which you can figure this out.
请记住,我们不需要知道它是怎样的一个态函数,只计算就可以了,你需要找到一条可逆路径,沿着这条路径就能算得这个结果。
We haven't actually learned how to calculate the formal charge yet, we'll learn it soon.
实际上我们还没学如何计算形式电荷,我们很快就会学到了。
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