In her words, "We need to know how using credit fits into our plans and goals."
VOA: special.2009.05.22
We want it to be about how people are using it and how people are fitting it into their lives and what they're doing with it.
我们想让它成为关于,人们怎样使用它和人们怎样,让它融入生活,人们用它做什么。
kind of how to write with just using different skills
怎样用不同的技巧写诗,
And we will tell how scientists are using lobsters to help protect the sea environment.
VOA: special.2009.08.25
And, as I mentioned, we left off and as we started back here to describe the atom and how the atom holds together the nucleus and the electron using classical mechanics.
我之前提及过,我们上次,讲到应用经典力学如何描述,一个原子以及原子如何把质子,和电子束缚在一起,今天我们要。
Giotto explored how to represent three dimensional space using light and shade.
VOA: special.2010.06.23
We have to understand the way in which what we do and say, what we write in our papers and articles, is grounded in theoretical premises which, if we don't come to terms with them, we will simply naively reproduce without being fully aware of how we're using them and how, indeed, they are using us.
我们所为,所说,和在论文中所写的内容,是以一些理论,为前提的,如果不接受这些理论,那我们就不过是天真地重复,根本不知道,我们是如何利用它们的。
Cardiologists, such as Dr.Gerard Martin, say that within the last four years, doctors have learned how to perform more complex heart surgeries using catheters."
VOA: standard.2010.01.01
Then on Thursday we're going to start talking about how to manipulate DNA and get closer to using it in Biomedical Engineering.
周四我们会谈到如何,如何操控DNA并进一步,使之应用于生物医学工程领域内
"How would we justify an essentially agrarian country importing most of the food that it eats and then using our lands to produce something else that we don't eat?
VOA: standard.2009.08.23
But the point is that how is Facebook, how is Amazon possibly going to communicate securely with you or your laptop using cryptology if you both have to know the same secrets.
关键是Facebook是怎么样,亚马逊是怎么样安全地和你或你的计算机,使用加密技术进行交流的,如果你们两个都,知道那个同样的密钥。
"But,it puts us in a very awkward position because,if we cannot go there ourselves to see what they are doing, to whom they are distributing and what criteria they are using, how much they are keeping for themselves, how much is getting lost, we start losing control over it,"
VOA: standard.2009.08.07
So it's good to show what you're thinking and how you're feeling by using "I feel like",
所以,用 “I feel like” 来描述你的想法与感受是非常好的用法。
I think you'll like using the pattern "you look" to express how you feel about someone.
我想你会喜欢用“you look”这个句型来表达你对某人的感觉。
So now that we can do this, we can compare and think about, we know how to consider wave functions for individual electrons in multi-electron atoms using those Hartree orbitals or the one electron wave approximations.
现在我们可以做这些了,我们可以对比和考虑,我们知道如何用哈特里轨道,或者单电子波近似去考虑,多电子原子中的单个电子波函数,所以对于我们研究了。
We'll come back to this in our example in the cardiovascular system when we're talking about the heart and we'll talk about how to measure the collective group of action potentials using EKG's.
这个我们回头再谈,等到我们在心血管系统的例子中,说到心脏时再说,我们会谈到如何通过,心电图测量群体动作电位
So that means that we don't have to worry about things like wave functions when we're talking about Lewis structures, but because they're so simple to use and because they so often predict the electron configuration of molecules accurately, we end up using them all the time in chemistry, so it's very valuable to know how to draw them correctly and to know how to work with them.
因此这也就意味着我们在讨论路易斯结构的时候,不需要担心波函数之类的东西,但是由于路易斯结构不仅简单易用,而且用它来预测分子的电子排布,经常可以得到非常精确的结果,结果我们在化学中一直都在用它,因此知道如何正确地画出并运用,路易斯结构是非常有价值的。
We also know how to figure out the energy of this orbital, and we know how to figure out the energy using this formula here, which was the binding energy, -Rh which is negative r h, we can plug it in because n equals 1, so over 1 squared, and the actual energy is here.
我们知道如何算出,这个轨道的能级,而且我们知道如何,用这个公式,算出能量,也即是结合能,等于,我们把n等于1代进来,所以除以1的平方,这就是能量。
So, sometimes you'll find the Rydberg constant in different forms, but just make sure you pay attention to units because then you won't mess them up, because this is in inverse seconds here, the other Rydberg constant is in joules, so you'll be able to use what you need depending on how you're using that constant.
有时候你们会发现Rydberg常数,会写成不同的形式,但你们要注意,它的单位就不会弄错了,因为这里是秒的倒数,而另一个Rydberg常数是焦耳,所有你可以根据你要怎么使用,这个常数来选择你需要的常数。
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