二维非定常非对称
two-dimensional unsteady and non-symmetric
二维非定常非对称流动
two-dimensional unsteady and non-symmetric flow fi
非定常非线性系统
time-varying nonlinear system
环境振动测试
Ambient vibration test
environmental vibration testing
Ambient vibration Testing
环境振动控制
Environmental shock control
环境振动试验
Ambient vibration Testing
Ambient vibration test
Environment vibration experiment
环境振动影响
environmental impact of vibration
随机振动环境
random vibration environment
铁路环境振动
railway environmental vibration
railway environment vibration
振动环境试验
vibration environment test
变异的非定常性
Nonconstancy of variability
不可压缩非定常流
unsteady incompressible flow
定常非对称分离涡
steady asymmetric vortices