本文所考虑的是二阶非定常系统稳定性的积分不等式判别法。
In this paper we shall discuss the criteria of stability for second-order linear nonautonomous, systems using the integral inequality.
本文将一维非定常不可压流体力学方程组，应用于整个低速透平压缩机系统。
The fluid mechanics equations of one-dimensional incompressible unsteady flow are adopted in whole low-speed turbo-compression system.
文中利用一维等熵非定常气体的运动方程计算系统的各参数，并把所得参数作为设计和试验的参考数据。
Kinematic equation of one-dimensional isoentropic nonsteady air was used to calculate system parameters for reference of design and experiment.
从非定常流场计算出发系统的研究了嗡鸣发生的机理以及扰流片对嗡鸣起抑制作用的机理；
Through solving the unsteady flow fields of an airfoil-flap, the mechanism of buzz is intensively studied.
分析了直升机从悬停到小速度前飞时，定常垂直气流的非均匀分布对直升机平衡操纵以及对系统摆振后退型模态阻尼的影响。
The influences of nonuniform vertical flow on helicopter trim controls and regressive lag modal damping levels were analyzed in hovering and forward flight.
可以提供更详细的多学科计算流体动力学的非定常空气动力学过程的认识，涉及现代制导武器系统机动飞行。
Multidisciplinary computations can provide detailed fluid dynamic understanding of the unsteady aerodynamics processes involving the maneuvering flight of modern guided weapon systems.
可以提供更详细的多学科计算流体动力学的非定常空气动力学过程的认识，涉及现代制导武器系统机动飞行。
Multidisciplinary computations can provide detailed fluid dynamic understanding of the unsteady aerodynamics processes involving the maneuvering flight of modern guided weapon systems.
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