Bubble charts display set of symbols whose position and size are based on the data in the chart 气泡图显示一组位置和大小都基于图表中数据的符号。
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Data flow diagram . a formalized diagram that shows how data moves through a program . it ' s sometimes referred to as a bubble chart because it ' s drawn by using circles and lines 《数据流程图》 ? ?一个描述数据在程序之间流动的正式图表。有时也称作“气泡图” ，因为这些图是用圆圈和直线画的。
