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

内聚力指把物质结合在一起子间作用力强度。

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子间作用力。

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

答案是子之间作用力与结构工程巧妙结合。

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

但SPN内部聚合物则更多是由瞬态子间作用力交联，例如氢键。

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

另一种主要类型子间力是“偶极-偶极力” 。

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

而子间力又取决于电负性。

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

让我们看看另一种子间作用力，这个叫做氢键。

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

它与将这些子结合在一起偶极-偶极相互作用子间作用力有关。

Let's look at another intermolecular force.

让我们看看另一种子间作用力。

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

唯一将两个甲烷子结合在一起子间力是伦敦色散力。

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子间力。

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

它发生是因为我们称之为“子间作用力” 。

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

子间力就是子之间力。

Like all matter, solids get their characteristics from the arrangement of their electrons, their chemical bonds, and their intermolecular forces.

像所有物质一样，固体特性来自于它们电子排列、化键和子间作用力。

There are basically 2 main types of intermolecular forces.

基本上有两种主要类型子间作用力。

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

表面张力强度取决于将液体子拉到一起子间作用力。

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

那么让我们看看第一个子间力。

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

但是，不要误会我意思，在这里。我并不是说子间作用力不重要。

We're talking about an intermolecular force.

我们谈论是子间作用力。

But it is the strongest intermolecular force.

但它是最强子间作用力。