summary calculation的意思|示意

The leftmost list still consists of Quantity sold by Product type and Sales region with the groupings on Product type and Sales region and a summary calculation on Quantity sold.

最左边的列表仍然包含按Product type和Sales region列示的Quantity sold，按Product type和Sales region进行分组，Quantity sold有一个摘要计算。

A summary calculation has been applied to the Year totalling the Revenue for all the Sales regions.

已将摘要计算应用以汇总所有Sales regions的Revenue的Year。

In addition to the groupings applied to Product type and Sales region, a summary calculation has been added to Quantity sold.

除应用到Product type和Sales region的分组外，还向Quantity sold添加了一个摘要计算。