When we fold the crease pattern into this flat base, each of these allocated areas becomes a separate flap.

当我们将折痕图案折叠到这个平坦的底部时，这些分配区域中的每一个都变成了一个单独的翻盖。

So whenever an engineer creates something that opens and closes in a controlled way, they can make use of the folding patterns of origami.

所以当设计师想要设计一个可以控制开关的东西的时候，他们可以借用折纸的方法。