如果它是一个非常共同的图形卡，而且你不能找晶片组或者存储器，你应该能够选择来自X安装数据库的卡的一个一般性或比较旧版本。
If it's a fairly common graphics card and you can't find the chipset or memory, you should be able to select a generic or older version of the card from the X installation database.
叠加和比较二个几何资料不同的起源和准确性经常造成很大数量的小几何图形。
Superimposing and comparing two geometrical data sets of differing origin and accuracy often give rise to a large number of small polygons.
所以，在几何学里，我们把一个图形与另一个图形相比较，借以突出其同一性。
Hence in geometry we compare one figure with another, so as to bring out their identity.
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