Surface 2.0 comes with two development layers

在Surface 2.0中有两个开发层

youdao

Just after vaccinia infects a cell, it expresses two viral proteins on the cell surface, which marks the cell as infected.

牛痘刚感染一个细胞后，就在细胞表面显示出两个病毒蛋白，这表明细胞已经感染。

youdao

This article covered a lot of ground in a short space, and frankly, it only scratched the surface of what these two outstanding libraries have to offer.

本文在有限的篇幅内涵盖了很大的范围，坦白地说，这仅仅触及到这两个重要库的表面。

youdao

It recommended using geometric lines of latitude and longitude to convey a three-dimensional Earth on a two-dimensional surface, and it included the co-ordinates of over 8, 000 locations in the ancient world.

ECONOMIST: There is no such thing as an objective map

Picture what it would be like to roll a bowling ball onto the two-dimensional surface of a trampoline.

NPR: Einstein: Relatively Speaking, a Complicated Life

They flew on two suborbital and four Earth-orbital Mercury launches, nine Earth-orbital Gemini flights, two Earth-orbital Apollo tests, and two lunar-orbital tests that made those lunar surface landings possible.

FORBES: Neil Armstrong's Immortal Footprint