adjusting rotational speed operation by frequency
rotational angular frequency
audio frequency and video frequency processing
correlation in frequency domain and frequency domain
High frequency and low frequency
Low Frequency and Acoustic Frequency
Low Frequency and Medium Frequency Therapy Equipment
theoretical frequency and actual frequency
2-D ESPRIT(estimation of signal parameters via rotational invariance techniques)
3D rotational correction
3-D rotational microscope
3-DOF rotational parallel mechanism
90 degrees rotational bent pipe
Absolute rotational stiffness
Adaptive Minimum Rotational Cost
Adjusting rotational speed and blade angle
assuming rotational field