红外光谱图中相应基团的变化和扫描电镜图中显示的表面形态变化说明可能发生了醚化和胺化的改性反应。

The change of related groups in FTIR spectrum and the change of surface on the SEM pictures indicated that the etherification and amination reactions took place.

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脂肪醇催化胺化制叔胺的工艺是目前生产脂肪叔胺的主要方法，和传统的酸法工艺相比具有明显的优势。

The process of catalytic amination of fatty alcohols is the main method to produce tertiary amines and has obvious advantages compared with the conventional process of fatty acids.

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由于多样化的人类饮食和其它因素，缺少表明少量三聚氰胺会对人类的伤害的证据。

The lack of evidence of harm to humans by trace amounts of melamine because of the varied human diet and other factors.

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