This would be a two group analysis where you have a thermal and a fast spectrum.

这个会是一个双群的分析,那样，你就有一个热能和快速的光谱。

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Then we detected the physiochemical characteristics of the MS sample through scanning electron microscopy ( SEM ) , infrared spectrum ( IR )and differential thermal analysis ( DTA ) .

通过多种检测手段，如：扫描电镜（SEM）、红外光谱（IR）、示差热分析（DTA）等对制备样本的理化特性进行检测。

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Results of thin section observation, X-ray diffraction pathern, infrared spectrum and different thermal analysis confirm it as a dickite.

薄片光性观察、X射线衍射分析、差热分析和红外光谱分析证实为地开石。

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