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本发明系一种生活垃圾焚烧飞灰用作工业染料废水的脱色材料，属环境工程技术应用领域。
The invention relates to household waste incinerated fly ash for a discoloring material of industrial dye wastewater, which belongs to the environmental engineering technical application field.
严卫星：第三块，就刚刚我们讨论的非食用物质的添加，瘦肉精的问题，三聚氰胺的问题，还有工业染料的问题等等，不断的一系列出现这些问题。
Yan Weixing: Let's talk about the third category of factors - non-edible substances, like "lean meat powder", melamine, as well as industrial dye, that we often see.
还包括第一次世界大战时美国从德国没收的染料专利资料，并最终成为美国化学工业基础的一部分。
There are German dyestuff patents that were confiscated by the United States during the First World War and became part of the foundation of the American chemical industry.
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