1·For instance, by reducing the number of virtual desktops, you have may save some memory, particularly if you are using large bitmaps as backdrops.
举例来说，通过减少虚拟桌面的个数，也许可以节省一些内存，使用较大的位图作为背景时尤其如此。
2·I'm most interested in the rasterizer, since it can convert SVG files to bitmaps.
我最感兴趣的是光栅化程序，因为它可以将SVG文件转换成位图。
3·This kind of interactivity is difficult, if not impossible, to achieve using bitmaps alone.
仅使用位图很难实现这种类型的交互性，甚至不可能实现。
4·We will use this code to abstract away the physical drawing of lines, circles, and bitmaps.
我们将使用这个代码对线、圆和位图的物理绘制进行抽象。
5·While compression helps to a certain extent, bitmaps still tend to be larger than vector images.
然而压缩带来的帮助是有限度的，位图依然比矢量图形大很多。