名词
中文翻译：多项式扩展
同义词：
['multivariate extension', 'polynomial expansion例句：1. In the study of economic growth', 'the polynomial extension is a key concept.（在经济增长研究中，多项式扩展是一个关键概念。）2. The polynomial extension helps us understand the relationship between variables more clearly.（多项式扩展帮助我们更清楚地理解变量之间的关系。）']
例句：
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1. In the study of economic growth, the polynomial extension is a key concept.
在经济增长研究中，多项式扩展是一个关键概念。
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2. The polynomial extension helps us understand the relationship between variables more clearly.
多项式扩展帮助我们更清楚地理解变量之间的关系。
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3.The polynomial extension is used to model complex systems that are difficult to analyze with traditional methods.
多项式扩展用于建模传统方法难以分析的复杂系统。