Cohesion means the strength of intermolecular forces that hold the material together.

内聚力指把物质结合在一起的分子间作用力强度。

They are used to help it grip to surfaces using intermolecular forces.

它们帮助壁虎抓住物体表面采用分子间作用力。

The answer lies in a clever combination of intermolecular forces and stuctural engineering.

答案是分子之间的作用力与结构工程的巧妙结合。

But polymers within the SPN are crosslinked by more transient intermolecular forces, such as hydrogen bonding.

但SPN内部的聚合物则更多是由瞬态分子间作用力交联的，例如氢键。

The other main type of intermolecular forces are " dipole-dipole forces."

另一种主要类型的分子间力是“偶极-偶极力” 。

And the intermolecular force, in turn, depends on the electronegativity.

而分子间力又取决于电负性。

Let's look at another intermolecular force.

让我们看看另一种分子间作用力。

Let's look at another intermolecular force, and this one's called hydrogen bonding.

让我们看看另一种分子间作用力，这个叫做氢键。

And it has to do with the intermolecular force of dipole-dipole interactions holding those molecules together.

它与将这些分子结合在一起的偶极-偶极相互作用的分子间作用力有关。

It's happening because of what we call " intermolecular forces."

它的发生是因为我们称之为“分子间作用力” 。

The only intermolecular force that's holding two methane molecules together would be London dispersion forces.

唯一将两个甲烷分子结合在一起的分子间力是伦敦色散力。

There are basically 2 main types of intermolecular forces.

基本上有两种主要类型的分子间作用力。

It's very weak, which is why London dispersion forces are the weakest intermolecular forces.

它非常弱，这就是为什么伦敦色散力是最弱的分子间力。

And so let's look at the first intermolecular force.

那么让我们看看第一个分子间力。

And an intermolecular force would be the force that are between molecules.

分子间力就是分子之间的力。

We're talking about an intermolecular force.

我们谈论的是分子间作用力。

But it is the strongest intermolecular force.

但它是最强的分子间作用力。

But, do not get me wrong, here. I'm not saying that intermolecular forces aren't important.

但是，不要误会我的意思，在这里。我并不是说分子间作用力不重要。

The strength of that surface tension depends on the intermolecular forces that pull molecules of a liquid together.

表面张力的强度取决于将液体分子拉到一起的分子间作用力。

Here's your hydrogen showing intermolecular force here.

这是你的氢在这里显示分子间力。