-
Mendeleev is the one who taught us that the properties of the elements are a function of the atomic mass.
门捷列夫教授我们元素特性,是元素质量所起的功能。
-
And since the Jewish community is known for owning a lot of different properties,
而且因为犹太人以拥有许多不动产而闻名，
-
Why? Bundle of properties: mechanical strength, chemical inertness, ease of fabrication: that's not a unique solution.
为什么，属性的总和：,机械强度，化学惰性，易于制造，那不是独特的解决方法。
-
There are also some hotel investments,retail properties, smattering of industrial properties not a lot of exposure to individual houses.
也有一些酒店和商场物业投资,以及一些零散的工业物业,没有太多地投资于个人住宅
-
Since we're talking about wave functions, since we're talking about the properties of waves, we don't only have constructive interference, we can also imagine a case where we would have destructive interference.
因为我们讨论的是波函数，因为我们讨论的是波的性质，我们不仅有相长干涉，我们也可以想象在,某种情况下会有相消干涉。
-
So strings also support things like selection, slicing, and a set of other parameters, other properties. And let's just look at that.
如果我要到这里来的话，就得把这儿注释掉，这里是我已经建立的。
-
A capability for asymmetric division and the production of cells that become differentiating more mature cells, those are properties of stem cells.
能够完成不对称分裂,以及产生细胞,并分化成为一些更成熟的细胞,这些是干细胞的性质
-
So you see how these different properties of food affect whether we would even consider it a food.
可以看出这些这些不同属性,是如何影响我们判断何为食品的
-
So it's a science that's based on macroscopic properties of matter.
所以它是一门,基于物质宏观性质的科学。
-
So we could ask, in this narrow sense, what properties do languages have and then go on to ask, in a broader sense, what other communicative systems also possess those properties.
我们可以发问,从狭义上说,语言拥有何种特性,然后我们可以接着发问,从广义上说,哪些其他的交流系统也同样拥有那些特性
-
It's not one of my essential properties that I'm a person.
作为一个人不是我的基本性质之一。
-
We have a table of the elements with properties varying periodically with atomic mass, so we compress all of that information and refer to it as the Periodic Table.
我们有一个元素表，其中的元素的特性,随着原子质量的改变而引起周期性的变化，所以我们将所有的信息精简,将它变成一个周期表。
-
And what we've been talking about with all of these properties are, of course, how can we figure out what that is for a certain atom by looking at the periodic table, so we want to think about the periodic trend for atomic radius.
对于我们讲过的这些性质，我们所讨论的一直都是,当然是，我们如何能够判断某一个原子的这些性质,通过观察周期表，因此我们需要思考一下原子半径的周期性规律。
-
It has a negative end and a positive end and it has certain properties.
这是一个偶极，有正电端也有负电端,偶极具有一定性质。
-
One of the properties that you would like a plasmid to have is you'd like for cells to be able to replicate it, to make more copies of it.
所以你所希望质粒具备的一个属性,就是得能让细胞复制它,制造出更多的拷贝
-
The body cannot adapt to a diet that has certain properties.
身体不能适应这样的饮食
-
But you actually need to keep a few caveats in mind as you do this, which is the fact that trends predict a lot of chemical properties, but they can't predict everything in terms of biological properties.
不过在你使用的过程中,需要牢记一些注意事项,那就是元素周期律可以预言很多化学性质，但是不能预言一切性质,比如生物学性质。
-
Chemical properties: so let's put something up as a hypothesis.
化学性质：,我们先提出一些假设。
-
The properties are not only a function of composition.
属性不只是组成成分的功能。
-
So now, this equation here relates three state functions together: the pressure the volume, and the temperature. Now, if you remember, we said that if you had a substance, if you knew the number of moles and two properties, you knew everything about the gas.
压强，体积和温度,大家应该还记得,我们提过，只要知道气体的摩尔数,和任意两个状态函数,就可以推导出其他的状态函数，这样，我们可以把它改写成。
-
All right, so that was a quick aside on thinking about how these properties can, in fact, relate to something in our body.
好的，我们刚才小小地离题了一下,来想了想我们讲过的性质，在实际上，是如何跟我们身体的某些机能联系起来的。
-
But you need to be able to predict what kind of properties a certain atom's going to have within a molecule, whether you're talking about something, for example, that's very electronegative, or something that is not electronegative at all, it is going to make a difference in terms of thinking about how molecules are structured and also how they interact with other molecules.
但是你需要能够预言，什么性质,某个原子在分子中能够具有，无论你讨论的是哪一种情况，比如，它有很高的电负性，还是它根本没有电负性，都将会产生影响,对这个分子的结构,以及与其它分子相互作用的情况。
-
Hydrogenation is an interesting process and will bring us to the discussion of Trans fat in just a few minutes, but it's basically when you hydrogenate a food you are altering its chemical properties to take a soft fat and make it more solid.
氢化是个有趣的过程并且,一会儿我们将由它引出反式脂肪的话题,但基本上,对食物进行氢化,是在改变食物的化学性质,将软脂酸变为硬脂酸
-
Cross-linked is not the right word-- that is chemically bonded with repeat units to make large molecules so that when you have a bunch of large molecules together they have certain physical properties like the solid property of the plastic that you're sitting on.
交联这个词不确切,应该是由化学键连接的,重复单位构成大分子,当许多分子聚合在一起后,它们就会具有某种物理特性,就像你们正坐着的,塑料一样,具有固体特性
-
Because you trust biomedical engineers to have done a good job in designing these things and we'll talk about how biomaterials are designed and tested, and what makes a material, the properties of a material that you could use as a contact lens, what are the properties that it needs to have.
因为你深信生物医学工程师们,在设计这些材料时,已经做了充分的工作,我们会讨论如何设计和测试这些生物材料,什么材质具有,能够用来,做成隐形眼镜的材料的属性,它们需要具备的特性究竟是什么
-
Now that's pretty far fetched and not many people would say that a pop tart should be a controlled substance and regulated by government, but there are some very interesting chemical properties associated with foods like this that trigger things going on in the brain that affect us in a very big way.
这多少有点牵强,而且也没有很多人会认为,这种果酱馅饼应归为管制品,并受到政府监管,但有趣的是这种食品,确实有一些特别的化学特性,它会作用于大脑并会对我们产生大的影响
-
And so, by and large, until this freon was invented by Midgley, there wasn't a good gas that had the right properties to be used for a refrigerant.
因此，总的说来，直到Midgley发明氟利昂，没有一个气体,能被很好的用作制冷剂。
-
This collagen is highly hydrated, it forms a gel that has water-like properties but it also has solid properties.
这些胶原蛋白是高度水合的,形成了既有水的特性,又具有固体特性的胶体
-
And we talked about periodicity and properties, so let's go and take a look at what we have and see if we can reconcile this.
现在我们讲一下周期性，我们先看一下我们已经掌握的知识,看看能不能和我们要讲的达成一致。
应用推荐