但是，无论是主元素还是痕量元素地球化学特征，均不能用单一的岩浆成因模型得到解释。
However, neither major element nor trace element geochemical characteristics can be explained by a simp le model of magmatic origin.
最后，用前期环流特征量为因子建立了祁连山主区层状云频率的预测模型。
Finally, a forecast model of frequency of stratiform clouds in Qilian Mountains was built based on the circulation characteristic factors.
这次再版已经被完全修正成特征关于主成分分析，自我模型化曲线决定和多模式的分析方法的新章。
This second edition has been completely revised to feature new chapters on principal component analysis, self-modeling curve resolution, and multi-way analysis methods.
本文的主要贡献如下：1提出一个用主曲线描述三维模型形状特征的新方法。
The main contributions of this thesis are summarized as follows: 1 Proposed a novel method using principal curve to describe the shape feature of 3d models.
本文的主要贡献如下：1提出一个用主曲线描述三维模型形状特征的新方法。
The main contributions of this thesis are summarized as follows: 1 Proposed a novel method using principal curve to describe the shape feature of 3d models.
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