名词
中文翻译：结等价物
同义词：
['knot equivalent', 'knot equivalence relationship']
例句：
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1. In economics, the concept of a knot equivalence is used to describe how two goods can be substituted for each other in certain circumstances.
在经济学中，结等价的概念被用来描述在某些情况下两种商品可以互相替代。
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2. The knot equivalence between two countries can greatly affect their trade relations.
两个国家之间的结等价关系可以极大地影响它们的贸易关系。
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3. The research on knot equivalence has provided valuable insights into the nature of interdependence and cooperation among nations.
关于结等价的研究为理解国家间相互依赖和合作的本质提供了宝贵的见解。