[视听材料] 高分子材料工程专业英语课文翻译 翻译

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高分子材料工程专业英语课文翻译
　　A  高分子化学和高分子物理
　　UNIT 1  What are Polymer?
　　第一单元  什么是高聚物？
　　What are polymers? For one thing, they are complex and giant molecules and are different from low molecular weight compounds like, say, common salt. To contrast the difference, the molecular weight of common salt is only 58.5, while that of a polymer can be as high as several hundred thousand, even more than thousand thousands.
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