Because DEM contains plentiful data shapes, the dissertation classified the data shape and discussed in details the reason and correlative relationship with real geomorphologic features of it.

DEM具有丰富的数据形态，根据汇水盆地分析对DEM数据的要求，对DEM数据进行了分类，并详细探讨了各类数据形态形成的原因和与实际地貌的对应关系。

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They are a vital part of an array of data that we use to assess if we're doing well or doing badly, and that in turn shapes government policies and corporate budgets and personal spending decisions.

它们是一系列数据的重要组成部分，我们用这些数据来评估自己的表现是好是坏，进而影响政府政策、企业预算和个人支出决定。

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A GIS specialist can add data, like precipitation values or economic data, to each cell, but describing complex irregular geographic shapes is difficult.

GIS专家可以向每个网格中添加数据，如降水量值或经济数据，但描述复杂的不规则地理形状较为困难。

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What is useful, he says, is to look at data arranged in shapes, using topology.

WSJ: Working With Big Data: The New Math

Data backups come in all shapes and sizes.

ENGADGET: Facebook to backup its servers with low-power storage devices at 'Sub-Zero' data center