It is the rate of change in total utility per unit change in quantity and is not the utility of a marginal unit.
它是（商品）量的每单位变动带来的总效用变动率，而不是边际单位的效用。
Reaction rate is measured by the change in concentration of a reactant or product per unit time.
反应速率是指单位时间里反应物或生成物浓度的变化。
Tests was carried out on cookies both in single and package unit to measure its velocity change and acceleration in different orientation in different damage rate based on damage boundary theory.
以苏打饼干单片和单包为研究对象，应用破损边界理论，设计相关实验，测试饼干在不同破损率条件下各个方位的速度变化及加速度，构造出饼干的破损边界曲线。
The exchange rate risk that the construction unit of the highway faces is shown as the trade risk mainly. The risk is the change of the receivable assets'and the payable debts'value.
公路建设单位面临的汇率风险主要表现为交易风险，即由于外汇率波动而引起的应收资产与应付债务价值变化的风险。
The exchange rate risk that the construction unit of the highway faces is shown as the trade risk mainly. The risk is the change of the receivable assets'and the payable debts'value.
公路建设单位面临的汇率风险主要表现为交易风险，即由于外汇率波动而引起的应收资产与应付债务价值变化的风险。
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