短語詞組短語synchronous data message block 同步數(shù)據(jù)訊息塊Data Descriptor Block 描述塊data control block macro [計(jì)]數(shù)據(jù)控制塊宏功能data management block 數(shù)據(jù)管理塊data transmission block 數(shù)據(jù)傳輸塊data extent block 數(shù)據(jù)擴(kuò)充塊;數(shù)據(jù)庳充程序塊;數(shù)據(jù)擴(kuò)展塊Data Base Block Access 數(shù)據(jù)庫方塊存取dcb data control block 數(shù)據(jù)控制塊Data Application Block 數(shù)據(jù)訪問應(yīng)用程序塊 返回 data block