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operational research
IT	1.λειτουργική έρευνα 2. έρευνα για τη λειτουργία
market.	επιχειρησιακή έρευνα
operational research br.
math.	λειτουργική έρευνα; έρευνα διαδικασιών
English thesaurus
operational research
USA	The analytical study of military problems undertaken to provide responsible commanders and staff agencies with a scientific basis for decision on action to improve military operations (JP 3-31)