The results show that there are infinite demand functions which can realize given demand price elasticity and given marginal return.
研究结果表明，为了实现既定的需求价格弹性或边际收益，对应的需求函数有无穷多个。
The results show that there are infinite demand functions which can realize given demand price elasticity and given marginal return.
研究结果表明，为了实现既定的需求价格弹性或边际收益，对应的需求函数有无穷多个。
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