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operational command	operational condition	operational console	operational control	operational control system
operational control unit	operational cost	operational cost control	operational data	operational defect
operational delay	operational differential amplifier	operational econometric model	operational efficiency	operational element
operational environment	operational environment software	operational expenditure	operational failure	operational fatigue
operational flowchart	operational indicator	operationalism	operational key	operational label
operational life proof cycle	operational life span	operational maintenance	operational method	operational mode
operational model	operational multiplier	operational order	operational order of evaluation	operational parameter
operational performance	operational phase	operational principle	operational process	operational profile
operational program	operational readiness	operational relay	operational reliability	operational report
operational research	operational reserve	operational safety	operational scanning recognition	operational scheduling
operational scheme	operational semantics	operational sequential diagram	operational sign	operational site
operational software	operational specification	operational speed	operational staff	operational standard cost