オペレーションズリサーチだった
operēshonzurisāchidatta
1. Operations research was.
Noun
#1944756
1. Operations research was.
1. If operations research; Were operations research
1. operation
1. research
1. operation
1. Research; Of research
1. research with; by researching
1. In operation; With operation
1. Operation.; It is an operation.
1. Operational; Of operation