It's a polymerized alkene, but the molecule itself is an alkane.

它是聚合烯烃， 但分子本身是烷烃。

Alkanes are just more of the same, add another carbon to lengthen the chain.

烷烃只是更多相同，添加另一个碳以延长链。

Sometimes the oils are fully hydrogenated, creating saturated alkanes.

有时油会完全氢化，产生饱和烷烃。

First, alkanes are always named based on the longest possible continuous chain in their structure.

首先，烷烃总是根据其结构中最长的连续链命名。

They can be alkanes or alkenes, sometimes, even rarely, alkynes.

它们可以是烷烃或烯烃，有时甚至很少是炔烃。

I'm not gonna go through them all. There are a few naming rules that are specific to alkanes.

我不会一一列举。 有一些特定于烷烃的命名规则。

Alkenes can be made into alkanes and alkynes can become either alkenes or alkanes depending on how many atoms are added.

烯烃可以变成烷烃，炔烃可以变成烯烃或烷烃，具体取决于添加的原子数。

There's only one letter changing here: A in alkanes changes to E for alkenes and then to Y for alkynes.

这里只有一个字母发生变化：烷烃中的 A 变为烯烃中的 E，然后变为炔烃中的 Y。

The first is the kind that made alkane the most common fuel for combustion or burning.

第一种使烷烃成为最常见的燃烧或燃烧燃料。

But there are 3 types of alkane reactions that are important enough for us to cover right now right here.

但是有 3 种类型的烷烃反应非常重要， 我们现在就在这里进行介绍。