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среднее квадратичное отклонение stresses
automat.	rms deviation; root-mean-square deviation
construct.	root mean square deviation
math.	mean square deviation
meteorol.	mean square error
psychol.	index of variability
stat.	standard deviation; mean root square deviation (Игорь_2006)
tech.	s
средне-квадратичное отклонение
refrig.	standard deviation

среднее квадратичное отклонение: 5 phrases in 3 subjects

Abbreviation	1
Data processing	3
Energy industry	1