frequency domain normalized least mean square

Mean power frequency

log mean temperature difference; logarithmic mean temperature difference

logarithmic mean area log mean area

logarithmic mean mole fraction; log mean mole fraction

logarithmic mean temperature difference; log mean temperature difference

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

∧-bounded mean variation

2-th power mean

40-yearly mean

above mean sea level

absolute mean deviation

absorption mean free path

acceleration of sidereal on mean solar time