名词
中文翻译：分数表达式
同义词：
['fractional equation', 'fractional function']
例句：
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1. In this model, the fractional expression represents the rate of change of a variable with respect to time.
在这个模型中，分数表达式表示一个变量随时间变化的速率。
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2.The fractional expression can be used to model the behavior of complex systems that exhibit non-linear dynamics.
分数表达式可以用来模拟表现出非线性动态的复杂系统的行为。
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3. The fractional expression is often used in financial models to account for the effects of volatility and uncertainty.
在金融模型中，分数表达式通常用来考虑波动性和不确定性的影响。