mean length of utterance
mean number of optical phonon
mean number of optical phonons
mean length of utterance MLU
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
anchorage length and lap length
ratio of pulse length to the total cycle length
span length of length bar
Mistake of row-column number in the drawing number of 1∶1000000
recombination of the number of grain and the number of panicle