名词
中文翻译：材料差异
同义词：
['difference in material', 'material distinction']
例句：
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1. The two companies have made a material difference in their approach to marketing.
两家公司在市场营销方法上已经产生了实质性的差别。
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2.This is a material difference between the two versions of the book.
这本书的两个版本之间存在实质性的差别。
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3. The differences in materials and techniques make it difficult for us to compare the two products.
由于材料和工艺的不同，我们很难比较这两个产品。