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Because this is a dipole, he chose the pole part of dipole to give us polar covalency.
这就是偶极，鲍林选择了偶极中“极“这一部分来,组成极性共价这个词向我们诠释。
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We only have the one bond so the actual HF molecule is polar, it has a net dipole.
但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。
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This is - there are also other receptors that are linked to other enzymes besides kinases.
除了激酶以外,还有很多其他的受体,与酶相偶联
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That's a historical accident of English.
这是英语的一个历史偶变
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If we put a dipole that has the freedom to move, we put that dipole in an electric field, it will align itself with the field lines.
若我们将偶极释放到自由空间中，比如说放到电场里，他们会自动排序按同一方向。
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So this is a little bit negative and this is a little bit positive, which means I could model this by drawing a dipole. This is a dipole.
这边带一点负电,这边带一点正电，这意味着我能把它表示,成一个偶极。
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And then we said you can also achieve octet stability and electron transfer if you look at elements that are just a little bit rich of electrons versus octet stability or a little bit lean of electrons.
然后我们说你还能达到8电子稳态,以及电子的转移,如果你看看,那些电子较多的元素,违背8偶律，或者有一点缺电子。
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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。
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There is another orthography that is used to indicate dipole.
表示偶极还有一种方法,表示偶极。
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Let's look at that one. Here we have a dipole.
我们也标出了一个偶极。
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It's going to be a dipole. This is plus; this is minus.
这是个偶极子，这里是正，这里是负。
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So, you would grow these monkey kidney cells in culture, you would add some virus to the culture broth, the cells would become infected, the virus would go through its life cycle.
我们在培养基中培养这些猴肾细胞,然偶加入一些脊髓灰质炎病毒,这样细胞就会被感染,病毒开始不断繁殖
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In the heart it turns out that the cells of the heart are electrically coupled together, so if an action potential moves down this cell it directly moves into the next cell.
在心脏中,事实证明,心脏细胞是电偶联的,所以如果动作电位在一个细胞中传递,那么直接就能传递给下个细胞
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So now that means if this is where the center of positive excess charge lies and on top of it is the center there is no displacement of the charge so there is no net dipole.
所以现在我们说,如果正电荷中心,就位于,那么还是在这里负电荷中心也在这里,所以没有空间偶极。
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So, there's a continuum of electrical connection in the heart that allows an action potential to sweep across the surface of the heart and for the heart to beat in a coordinated fashion.
所以 心脏细胞有电偶联的连结组织,以使动作电位平稳在细胞表面传递,保证心脏的协调性跳动
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I have to ask is there a net dipole?
我必须问这里是否有一个网状偶极？
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It's called the G-protein coupled receptor because it's a receptor, like the one shown here, that's coupled to a special molecule called a G-protein.
之所以叫这个名字是因为这种受体,就像这里展示的一样,是与一种叫做G蛋白的特殊分子偶联的
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It can also happen in other ways, it could be a G-protein coupled receptor which we talked about last time, which indirectly activates another ion channel to start the electrical signal.
还可以有其他方式,可以通过G蛋白偶联受体,这我们上次谈过,它可以间接激活,另一个离子通道以开启电信号
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Another family is called the G-protein coupled receptor.
另一类家族叫做G蛋白偶联受体
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