The analysis of FT-IR showed the presence of some PMMA on the talc surface.

红外光谱分析表明，在接枝滑石粉表面存在着PMMA。

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The difference of thermomechanical coupling effect is the cause to result in IR feature difference between rock and PMMA.

两种材料热力耦合机制不同是导致受力红外辐射特征差异的根本原因。

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