一旦确定了原则，整理杂物就再简单不过了：先分类，然后送它们去该去的地方。

Once you know the rules it's easy to sort every item into it's pile AD then send it where it needs to go.

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强调了“生命第一”的原则和“分类后送”的救治方法。

The principle that life is the first and the rescue method of the delivery after classification are stressed.

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最后对于所提取的特征利用PCA降维后送入支持向量机中分类。

In the end, for the extracted features, we used PCA for dimension reduction and SVM for recognition.

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