垂直位移不稳定性
Vertical displacement instability
密度波不稳定性
density wave instability
Density wave oscillation
density wave type oscillation
强稳定(不稳定)流形
strong stable (unstable) manifolds
热弹性不稳定性
thermo elastinstabilities
弱稳定(不稳定)流形
weak stable (unstable) manifolds