Earth's surface is not made up of a single sheet of rock that forms a crust but rather a number of "tectonic plates" that fit closely, like the pieces of a giant jigsaw puzzle.

地球表面并不是由构成地壳的单块岩石构成，而是许多紧密相连的“构造板块”，像一块巨大的拼图。

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Nanotechnologists could link DNA “tiles” into a sheet, or fold a long strand of DNA back on itself again and again until it formed a flat surface.

纳米技术学家们能够将DNA“砖块”连成一大片，或者将一条长链的DNA反复折叠以形成一个平整的表面。

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A positive charge applied on the top surface of the ink will allow the white to show, making the surface as white as a sheet of paper.

加上墨水表面上方的正电荷将使白色显现出来，使表面像一张纸那样白。

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The pair built the devices in the garage while Lucile used the kitchen stove to bake the paint on the surface of sheet-metal casings.

FORBES: Great Garages

These data will provide invaluable information about Antarctic atmospheric dynamics, of the origin of water vapour over the oceans and how it is ultimately deposited as snow on the surface of the ice sheet.

BBC: Viewpoint: The last great polar challenge

Dr Sheridon has come up with a so-called wand an electronic stick that can hold ten full-size books and also transfer text on to a sheet of Gyricon if a user runs the wand over the surface like a handheld scanner.

ECONOMIST: Showing off