There's heavy machinery, there's liquid chemicals, there's bulk material.

有重型机械， 有液体化学品， 有散装材料。

And in the bulk material, there are billions of these, and the similar components try to stick together, and the opposing components try to separate from each other at the same time.

在大量的材料中，有数十亿这样的物质，相似的成分试着粘在一起，而相反的成分同时试着分开。