The extracting features of metallography is the key to metallographic analysis.

金相图象特征信息提取是进行金相分析的关键。

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At first extracting features of chromaticity moments was done then classification method of SVM for recognition of plant disease was discussed.

首先利用色度矩提取植物病害叶片的特征向量，然后利用支持向量机分类方法进行病害的识别。

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At first, extracting features of chromaticity moments was done, then classification method of SVM for recognition of plant disease was discussed.

首先利用色度矩提取植物病害叶片的特征向量，然后利用支持向量机分类方法进行病害的识别。

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The Anthem 4G also features dual microphones with noise cancellation, delivering impressive sound quality by extracting surrounding noise from the primary microphone.

ENGADGET: ZTE Anthem 4G unveiled for MetroPCS, has us singing a dual-core, LTE tune for $219