Hilbert谱瞬时频率变异系数
variance coefficients of instantaneous frequency o
瞬时界面张力
transient interfacial tension
瞬时角速度矢
instantaneous angular velocity vector
瞬时角速度
instantaneous angular velocity
instantaneous angle velocity
瞬时基准面
instantaneous datum plane
瞬时基频
Instantaneous fundamental frequency
瞬时风速
instantaneous wind velocity