A light layer of grease lay on all the Formica-topped tables, but it was at least empty.

塑料贴面的桌子上粘着一层薄薄的油腻，但至少还算清静。

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Your Volkswagen logo is finally complete, you can optionally add some gloss with Overlay or Soft Light layer styles to make it blend in with the logo more the same way it looks below.

你的大众logo最终完成了。你可以选择性地用叠加或柔光图层，给Logo添加一些光泽，使它看上去更像下图。

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Just below the chromatophores is a layer of cells that reflect light from the environment, and these cells help the octopus create a precise match with the colors that surround them.

色素团下面是一层细胞，它可以反射周围环境的光，这些细胞可以帮助章鱼精确地匹配周围的颜色。

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The flash itself is actually a second image of the sun, caused by refraction of its light through the layer of air closest to the sea.

ECONOMIST: In a flash

The new microscope, called Multi-View SPIM (MuVi-SPIM) shines a thin sheet of light on the embryo, illuminating one layer of the embryo at a time to prevent light damage.

MSN: Fruit fly embryo grows into larva in 3-D video

Light falling on to this layer creates an electric charge.

ECONOMIST: Curtains for celluloid