unstable motion

基本解釋

An “interbody fusion” is a bony bridge that “welds” the two vertebral bodies together to stop unstable motion.
“椎體融合術(shù)”就是將兩個脊椎連接起來防止脊椎不穩(wěn)定的手術(shù)。
The results show that the vortex motion is unstable for small three-dimensional disturbances in the separated wake of a circular cylinder.
結(jié)果表明，圓柱分離尾跡中的旋渦存在三維不穩(wěn)定性。
The response results show that there are three ways leading to chaos: quasi-periodic bifurcation, intermittent bifurcation and unstable period-3 motion.
由結(jié)果發(fā)現(xiàn)：響應進入混沌的道路有擬周期環(huán)面破裂、周期3運動失穩(wěn)和陣發(fā)性混沌進入混沌三條。