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

答案是分子之间的作用与结构工程的巧妙结。

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

内聚物质结在一起的分子间作用强度。

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。

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

但SPN内部的聚物则更多是由瞬态分子间作用交联的，例如氢键。

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

而分子间作用又取决于电负性。

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

这与-相互作用这种分子间作用将这些分子结在一起有关。

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

让我们来看看另一种分子间作用，这种作用被称为氢键。

But since they have real weak intermolecular forces they're going to have a very low melting point.

但由于它们的分子间作用真的很弱，所以熔点会非常低。

The intermolecular forces will hold them in place and then they will not vaporize into the air.

这些分子间的作用将它们固定在原位，使它们不会挥发到空气中。

And so you have table salt and that has very strong intermolecular forces, but it's not sticky.

因此，你拥有的是食盐，它具有很强的分子间，但并不粘。

Here's your hydrogen showing intermolecular force here.

这里是你看到的氢原子展示了分子间作用。

It's just because of intermolecular forces.

这完全是因为分子间作用的缘故。

It's Mr. Andersen and this chemistry essentials video 18 on intermolecular forces, which are simply the forces between molecules.

这是安德森先生和这个化学基础视频18关于分子间, 这只是分子之间的。

The intermolecular forces between that is what causes them to be close to one another.

分子间是导致它们彼此靠近的原因。

May the intermolecular forces be with you.

愿分子间与你同在。

And so intermolecular forces are important because they give us the properties of solids and liquids and gases.

所以分子间作用很重要, 因为它们赋予我们固体、液体和气体的特性。

And in gases there's not too many intermolecular forces because they're moving around really really quickly.

而在气体中, 分子间作用并不多, 因为它们移动得非常非常快。

Um, intermolecular forces are, all they are is the forces between two molecules.

嗯，分子间，其实就是两个分子之间的。

Let's look at another intermolecular force.

让我们来看看另一种分子间作用。

And then finally intermolecular forces are incredibly important in biology.

最后，分子间在生物学中其重要。