In order to facilitate the descent, Hans wound his way down the cone by a spiral path.

为了便于下降， 汉斯沿着螺旋路径沿着圆锥体蜿蜒而下。

So they move farther at the top of their loop than they move backwards at the bottom, creating a spiral path.

因此， 它们在循环顶部移动的距离比在底部向后移动的距离更远，从而形成螺旋路径。