Diminishing marginal utility,law of 边际效用递减规律
边际利润 marginal profit
Marginal zone
边际产值 marginal value
边际收益产品(Marginal revenue product)
边际收益(Marginal revenue)
边际效用( Marginal utility)
边际效用递减律(Law of diminishing marginal utility)
边际收益递减律(Law of diminishing marginal returns)
边际产品(Marginal product)