These are of two varieties, known as single and double bonds.

学键有种，单键和双键。

Unsaturated fats, on the other hand, contain double bonds that create an irregular kink in their structure.

相反，非饱和以双键以双键不规则地连接在一起。

Corn oil, for example, is made up of lipids with lots of double bonds, also known as polyunsaturated fats.

例如，玉米油是由许多双键的脂类组成的，这类物质也叫作多元不饱和脂肪。

The carbons double bond with each other so that fewer hydrogen can fit and we call this unsaturated fat.

每碳原子之间都有双键连接，这样很难嵌入碳原子之间。我们称这种脂肪为不饱和脂肪。

Single bonds can rotate around their axis no problem, but double bonds lock a structure into place.

单链可以轻易地绕轴转动，但双链将结构固定于特定的位置。

In nature, a double bond in a fat chain almost always locks it into a kink.

事实上，脂肪链中的双链几乎都是将链固定成一结。

Each double bond means two fewer hydrogens.

每双链意味着少原子。

How, for example, could you imagine sp3 orbitals forming a double bond?

例如， 您如何想象 sp3 轨道形成双键？

And the reason that these are bent is because they have a double bond.

这些分子之所以弯曲，是因为它们含有一双键。

They have this chemical structure that involves having double bonds in it.

它们具有这种学结构，其中包含双键。

Single bonds like this are going to be different than double bonds like this.

像这样的单一债券将不同于像这样的双重债券。

And that double bond can either lock the chain into a kink or lock it straight.

而且双链可以将链固定成一结或是直线。

OK, so the ones you don't want, the ones with the double bonds, the wiggly ones.

好的，那些你不想要的，带有双键的，弯曲的那些。

They say, okay, well, one we're licensed and bonded, you know, totally double licensed, double bonded, triple insured.

他们说，好吧，我们是持证且有保险的，你知道，完全双证双保，三重保险。

And so we have four electrons in this double bond between the carbon and the oxygen.

所以我们在这碳和氧之间的双键中有四电子。

So we have a polarized double bond situation here.

所以我们这里有一极的双键情况。

So the logic goes something like, well, you have these multiple double bonds and so they can be oxidized.

因此，逻辑是这样的，嗯，你有这些多双键， 所以它们可以被氧。

The molecule itself is a diterpene, a kind of carbon-and-hydrogen molecule with lots of double bonds.

这分子本身是二萜，是一种有很多双键的碳分子。

If you get a double bond right here, that's going to cause this to actually bend on itself.

如果在这里形成一双键，那会导致整结构向内弯曲。

That's your nice symmetrical double bond that you see in molecules like ethylene.

这是你在乙烯等分子中看到的漂亮的对称双键。