瞬时频率
Instantaneous frequency
instantaneous frequencies
instant frequency
transient frequency
Instantaneous frequency IF
Blood_spinal cord barrier
automobiles--Returnability
istantaneous frequency
instantaneous-frequency
瞬时变形
instantaneous deformation
immediate deformation
immediate set
瞬时短路
momentary short
Instantaneous short circuit
瞬时风速
instantaneous wind velocity