Development of an epoxy-based self-intumescent fire protective coating containing an appropriate mass ratio of APP and Cu2O

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Researchers found that a newly developed epoxy-based self-intumescent fire protective coating with a combination of ammonium polyphosphate (APP) and copper (I) oxide (Cu2O) can protect steel plates at temperatures well…

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Excel表格技巧:如何设置在表格单元格输入时提供推荐列表?

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本教程适用版本:WPS 365 点击免费使用使用WPS Office打开表格。依次点击“文件”--->“选项”。 选择“编辑”,勾选上“输入时提供推荐列表”选项后,确认即可。 设置后在表格内输入内容即可已有内容进行推荐。  

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