胫腓骨不稳定骨折
Unstable fracture of tibia and fibula
等离子体垂直不稳定性
Plasma vertical instability
Plasma vertical instability control
强稳定(不稳定)流形
strong stable (unstable) manifolds
桡骨远端不稳定骨折
Unstable fracture of the distal part of radius
弱稳定(不稳定)流形
weak stable (unstable) manifolds
胸椎不稳定骨折
Unstable f racture of thoracic spine
垂直稳定度
vertical stability of water column
垂直稳定段
steady multiphase flow of vertical pipe