The formations have built up over the last several months, eventually creating flat structures formed on top of one another.

这些盐层在过去几个月里逐渐形成，最终形成了一个又一个的平面结构。

Mars has a relatively flat management structure, in which bosses have no cushy perks such as personal parking spaces.

火星的管理结构相对扁平，老板们没有私人停车位等优待。

But Feringa's team built a molecule out of two flat structures that locks together, so when they added UV light and heat, it only spun in one direction.

但费林加研究组用两个相扣的扁平结构建成了一个分子，所以当他们加入紫外线光并加热时，分子只朝一个方向旋转。

But Feringa’s team built a molecule out of two flat structures that locks together, so when they added UV light and heat, it only spun in one direction.

但是 Feringa 的团队用两个锁定在一起的平面结构构建了一个分子，因此当他们添加紫外线和热量时， 它只会朝一个方向旋转。

It's counterintuitive to think of black holes as energy sources, but that's exactly what they are, thanks to their accretion disks: circular, flat structures formed by matter falling into the event horizon.

把黑洞视为能量来源是一种反直觉的想法，但它们的自然特性就是如此。这要归结于它们的吸积盘（Accretion disk）：一种圆形扁平结构，由掉落在事件视界（Event horizon）内的物质构成。