The artist can then add a second color of glass to make designs over the first layer of glass.

VOA: special.2009.09.16

But I'm sure you can easily see how these styrofoam balls could, in fact, be a mono layer of gold nuclei.

这个实验怎么工作的,我们先来做些计算，但我相信你们都已经。

麻省理工公开课 - 化学原理课程节选

there are many genes that are already expressed and presented in this dimpling and thickening of the outer layer.

在外胚层的凹陷和增厚过程中,表达了很多基因。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Nanogate takes a material to be coated, applies a layer of adhesive nanoparticles and then adds another layer of non-adhesive nanoparticles that bind to the first layer.

FORBES: Nanotechnology: A New World Is Born

The result was interesting, Unlike pork, the wild boar ribs had two distinct layers, sort of like pork belly, with a layer of meat and a layer of fat almost perfectly split horizontally.

FORBES: Wild Boar: The Other Other White Meat?

Grotzinger knew from satellite images that there was a layer of crystalline red hematite near the bottom, then a layer of clay about a hundred and sixty feet above it, then a layer of sulfates above that.

NEWYORKER: The Martian Chroniclers