... oscillation 振荡 oscillatory differential equation 振动微分方程 oscillatory period 振荡周期 ...
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建立了正弦波纹扁球壳的非线性强迫振动微分方程；
The differential equations of nonlinear vibration of the shell were obtained.
选定状态变量，得出悬挂系统状态方程和振动微分方程。
The state equation and vibration differential equation of suspension system was set up through selecting state variable.
本文通过建立轨道振动微分方程，得到单轮作用下轨道变形的解析表达式。
The analytical formula of track deformation under a single wheel load has been deduced by establishing the track vibration differential equation.
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