时间变化率 meaning in English

time rate of change

The mass outflow rate minus the mass inflow rate is equal to the time rate of change of mass storage in the parallelepiped .
质量的流出率减去质量的流入率等于贮存在这个平行六面体中的质量的时间变化率。
The limited - jerk control commands are designed by fixing on a jerk maximum to limit the varying ratio of the reference orders , then the optimal time delays are solved by minimizing the oscillation energy of flexible modes
通过确定最大冲击值，对指令信号的时间变化率加以限制来设计有限冲击控制指令，然后令柔性模态振荡能量最小，计算滤波器的最优时滞。