采用自由振荡法数值模拟了平头、钝头外形的超声速俯仰振荡时间历程，并应用奇异分解线性最小二乘法辨识稳定性导数，得到动导数随马赫数和攻角非线性变化的规律。
The dynamic derivatives conception is used as the index for the vehicle stability, but it is looked as the function of angle of attack and Mach number to induced nonlinear characteristics.
而智能电网则利用数字技术，能够收集、传导数据，并作出反应，这提高了系统的效率和稳定性。
A smart grid would use digital technology to collect, communicate and react to data, making the system more efficient and reliable.
运用比较原理和导数不连续的李雅普诺夫函数，结合分解集结等方法，研究具有滞后的测度型线性时变脉冲扰动大系统的全局指数稳定性。
The stability of time-delay and time-varying large scale systems with impulsive effect is investigated by means of the comparison principle and vector Lyapunov function with discontinuous derivative.
在第七章里，讨论向量优化问题的二阶导数的稳定性。
In Chapter 7, we study stability of second-order derivatives in vector optimization problems.
在第七章里，讨论向量优化问题的二阶导数的稳定性。
In Chapter 7, we study stability of second-order derivatives in vector optimization problems.
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