The change of labor productivity also can cause the change of the commodity supply and demand relations thus the total value quantity is changed.
同时，劳动生产率变化还会使商品供求关系变化，从而使价值总量发生变化。
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。
On the base of specified total quantity of heat, the effect of the change of heat flux and the distributive region of heat flux on the temperature distributions are discussed.
在总热量一定的基础上，通过变化局部热流强度及作用区域，讨论了各向异性材料对热流分布响应的热敏感性。
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