本文提出了一种基于切丛的维数约简方法。
In this paper, we propose a dimension reduction method based on the tangent bundle.
竹笋产量主要影响因子是丛立竹数和立竹胸径，决定出笋数量和笋个体质量。
The key factors affecting the yield of shoot were the quantity and DBH of living culm, which determined the quantity and quality of shoot.
出笋数量与丛立竹数正相关，与笋个体质量负相关。
The quantity of shoot product was positively correlated with the quantity of living culm, and negatively correlated with the quality of individual shoot.
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