The functions are represented by little boxes with patch cords connecting them together.

马克：功能由小盒子表示，用跳线将它们连接在一起。

So by connecting the nodes together on patch cords, it's really easy to visualize what's happening from top to bottom.

因此，通过跳线将节点连接在一起，可以很容易地看到从上到下发生的事情。