名词短语
中文翻译：替换理论同义词
同义词：
['substitution theory', 'substitution principle']
例句：
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1. The theory of substitution explains how different materials can be used to make a single product.
替换理论解释了如何用不同的材料制作单一产品。
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2. This theory of substitution has been proven to be effective in reducing waste.
这一替换理论已被证明在减少浪费方面是有效的。
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3. The development of the theory of substitution has greatly advanced our understanding of material science.
替换理论的发展极大地推进了我们对材料科学的理解。