Then we can take the derivative of that quantity, when we vary the temperature, holding the volume constant.
即恒定体积，改变温度，这里恒定温度下。
Then the second derivative gives the change in entropy with respect to the variable that we're differentiating, with respect to which is either pressure or volume.
二阶导数给出熵，随着变量变化的情况，这些变量包括压强或者体积。
The volume of trade in the interest rate derivative market increases rapidly and has accounted for more than 70 percent of the OTC financial derivative trading.
利率衍生品市场交易量迅速增长，在OTC金融衍生品交易中所占比重在70%以上。
When the second derivative of the bubble number in unit bed volume with respect to gas velocity equals zero, the flow regime transition occurs. The model fits fairly well with the experimental data.
导出了当单位床层体积中气泡数目对气速的二阶导数为零时发生流型转变，该模型的计算机结果与实验数据吻合良好。
We have discovered that this partial derivative that appears in the definition, the abstract definition of the differential for internal energy, is just equal to the constant volume heat capacity.
我们还发现，这个偏微分出现在了，内能的偏微分，定义式中，它也就是热容。
We have discovered that this partial derivative that appears in the definition, the abstract definition of the differential for internal energy, is just equal to the constant volume heat capacity.
我们还发现，这个偏微分出现在了，内能的偏微分，定义式中，它也就是热容。
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