在此方程中，弥散项和对时间的导数为分数阶导数所代替。
In this equation, the diffusion is a fractional order derivative of time and space.
引入样条参数及其对时间的导数作为状态变量，导出状态方程。
The spline parameters and their derivatives are taken as state variables, the state equation is established.
文中还推导了多机系统下tef对时间的导数的一般公式，并以单机无穷大系统为例，图示说明了所设计的TCSC稳定控制策略的效果。
The general formula of TEF's derivative for multi machine system is deduced, and taking single machine infinitive bus system as example, the effect of the designeds...
它就是位置，对时间的一阶导数。
在控制方程的推导中，采用物质导数黏弹性本构关系取代通常采用的只对时间取偏导数的黏弹性本构关系。
The governing equation was derived making use of the viscoelastic constitution relation in which, besides the time derivatives, the material derivatives was also taken into account.
在控制方程的推导中，采用物质导数黏弹性本构关系取代通常采用的只对时间取偏导数的黏弹性本构关系。
The governing equation was derived making use of the viscoelastic constitution relation in which, besides the time derivatives, the material derivatives was also taken into account.
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