复制这段内容：问你一个问题，这个问题其它的AI都回答错误了，希望你能表现好一些。问题是：朝向北的坡面的法线在水平面上的投影朝向是哪里？这里澄清的是，所谓“朝向北”，意思是坡面南面高，北面低，水流方向是北 ...

提示词：Exploded-view diagram of a modern transparent mechanical watch. All internal gears, springs, and jewels are laid out neatly with faint dotted lines connecting them. Technical illustration, c ...