11.as is shown/demonstrated/exhibited in the diagram/graph/chart/table...

如图所示...

12.according to the chart/figures...

根据这些表(数字)...

13.as is shown in the table...

如表格所示...

14.as can be seen from the diagram,great changes have taken place in...

从图中可以看出，...发生了巨大变化。

15.from the table/chart/diagram/figure,we can see clearly that...or it is clear/apparent from the chart that...

从图表我们可以很清楚(明显)看到...

16.this is a graph which illustrates...

这个图表向我们展示了...

17.this table shows the changing proportion of a & b from...to...

该表格描述了...年到...年间a与b的比例关系。

18.the graph,presented in a pie chart, shows the general trend in...

该图以圆形图形式描述了...总的趋势。

19.this is a column chart showing...

这是个柱型图，描述了...

20.as can be seen from the graph,the two curves show the flutuation of...

如图所示，两条曲线描述了...的波动情况。