The trick is to send neutrinos on a shortcut through a fourth, thus-far-unobserved dimension of space, reducing the distance they have to travel.

诀窍在于通过第4维空间即直到目前还未观察到的空间把中微子发送到一个捷径上，以减少中微子的行程。

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Reducing the high dimension of feature vectors is an essential part of text categorization.

对高维的特征集进行降维是文本分类过程中的一个重要环节。

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A mathematical analysis for PLS main component was finished, and the ability of reducing dimension and noise filtration of this method was discussed.

对PLS的主矢量所张成的子空间进行了数学分析，并对该方法的降维去噪能力进行了讨论。

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