作業(yè)研究 operations research: 〔美國〕運籌學。 computerized operations research: 計算機化運籌學computers and operations research: 計算機與運籌學研究managerial operations research: 管理運籌學mathematics of operations research: 運籌學數(shù)學下載手機詞典可隨時隨地查詞查翻譯