字典網>> 英漢字典>> O開頭詞條>>operation cost system的意思 漢英字典operation cost system中文翻譯：【經】 營業成本(經營成本,業務成本)制度字典網字典網相關詞條：operational characteristics operation cost operation flowchart operational character operational site operation planning operation Bonnet's operation requirement operational symbol operational sign