We can get enlightened by imagining the pyramid shape.
我们可以想象一下金字塔的形状，或许可以受到一点启发。
The yield structure of the plant showed a pyramid shape.
群落主要植物种群的产量结构呈金字塔型。
The stem biomass of Pinus in the pure forest was of pyramid shape and the deadwood biomass accounted for 1.75%, but 4.20% in the mixed forest.
纯林中马尾松的干生物量基本上为金字塔形，枯枝生物量所占比例为1.75%，而混交林中为4.20%。
The stem biomass of Pinus in the pure forest was of pyramid shape and the deadwood biomass accounted for 1.75%, but 4.20% in the mixed forest.
纯林中马尾松的干生物量基本上为金字塔形，枯枝生物量所占比例为1.75%，而混交林中为4.20%。
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