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　　圆�Ş�?Pie chart)也称为饼状图或圆面分割图。圆形图因�ؓ(f��)比较形象和直观，各部分空间大���差别容易分辨，所以常用来表示总量和各分量之间的百分比关系。整个圆表示总量�Q�楔形块表示分量。有时圆形图�q�有数��D���Q�两者结合可把各分量表示得更准确、清楚。例如：(x��)

　　This is a pie chart of the average weekly expenditure of a family in Great Britain. As can be see from the chart, the main expenditure of an average British family is spent on food, which accounts for 25% of its total expenditure. The next two significant expending items are transport and housing, which are 15% and 12% respectively. If we take into account clothing and footwear, which makes up 10%, the four essentials of life, that is, food, transport, housing, and clothing and footwear, amount to 62% of the total expenditure.

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