...稳定运动条件 力心理论 [gap=2020]ne movement, Biaxial selfsynchronous vibration, Selfsynchronous conditions, Conditions of stable movement, Force center theory ..
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按稳定尾旋的条件对飞机运动方程组作了简化。
In this paper, the non-linear differential equations of aircraft motion are simplified by the condition of steady spin.
讨论了影响振动筛同步性能和稳定性的因素，给出了要实现平动椭圆运动的条件。
Then the factors influencing the synchronism and stability of the shaker are discussed. At last the conditions of balanced elliptical motion are presented.
并由刚体平面运动方程，推导出混凝土护坡板的绝对稳定和准稳定条件关系式，以确定护坡板的尺寸。
The formulas are derived for the conditions of concrete blocks absolute-stability and quasi-stability according to the equations of stiff-body motion on plane.
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