These data are fit with method of spline and resampled to divide crown into many small slices, whose volume and surface add up to the result.

然后用三次样条法拟合剖面边缘曲线并插值采样，把立体树冠分解成许多微小的切片分别求体积和 表面积，依次累加就得到所需结果。

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Today, in terms of both assets and profits, you can just about divide HSBC into three geographic slices: North America, Europe and emerging markets like Asia, the Middle East and Latin America.

FORBES: Magazine Article

"It's fine if in Wales we say let's divide the cake in ways that seems fair across all parties, but if the result is the slices are too small to be effective in competition with other parts of the UK or Europe, then we're not going to get very far with it, " he said.

BBC: Enterprise and Business Committee