To activate the grip, the lizards extend and angle their setae to create millions of contact points with a surface.

为了紧抓住平面，蜥蜴伸展并且刚毛 便产生和表面的数百万计接触点。

And it is because the small setae are very close to the wall.

因为小刚毛离墙很近。

These setae can bend to make contact with all the grooves and crevices in a surface.

刚毛可与表面上的所有沟壑与裂缝进行连接。

The large numbers of setae produce very strong forces. They give the geckos wonderful " sticking" power.

大量的刚毛会产生非常强大的力量。它们赋予壁虎奇妙的“粘着”力量。

To adhere, the setae rely on small electromagnetic attractions between molecules called van der Waals forces.

为了具有粘附性，刚毛依靠的是分子间被称为范德华力的力产生的微弱电磁吸引力。

So this right here is one seta, or one segment within the worm.

所这里是一个环节，或者说是蠕虫体内的一个节段。

Whenever Apollo takes a step, the setae flatten to make close contact with the surface.

每当阿波罗迈出一步，刚毛就会变平，与表面紧密接触。