采用推进阵面法生成三角形非结构网格，用多重网格技术求解泊桑方程以取得结构背景网格。

Computational unstructured grid is generated by advancing front method, and the structured background gird is obtained by using multigrid technique to solve the Poisson equation.

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在本课程中，我们希望从社会和历史背景的整体结构来看文学。

In this course we hope to look at literature in the frame of its social and historical context.

《牛津词典》

一项最新民调发现，在经济和人口结构发生巨变的背景下，美国的年轻一代正在绘制一幅21世纪通向成功的地图。

Against a backdrop of drastic changes in economy and population structure, younger Americans are drawing a new 21st-century road map to success, a latest poll has found.

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And, furthermore, to put the background in front, 1s2 2s2 2p3 let's do the electronic structure. It is 1s2, 2s2, 2p3.

此外，把他的背景知识都翻出来，我们分析一下电子结构，这是。

麻省理工公开课 - 固态化学导论课程节选