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operational research▼noun[UK: ˌɒ.pə.ˈreɪ.ʃnəl rɪ.ˈsɜːtʃ] [US: ˌɑː.pə.ˈreɪ.ʃə.nəl ri.ˈsɝːtʃ]
operations analysis▼noun[UK: ˌɒ.pə.ˈreɪʃ.n̩z ə.ˈnæ.lə.sɪs] [US: ˌɑː.pə.ˈreɪʃ.n̩z ə.ˈnæ.lə.səs]
operations research▼◼◼◼nounUS
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