单词	定时记号
释义	定时记号timing mark
随便看	direct access communication channel，dacc direct access device direct access file direct access file system direct access inquiry direct-access library direct-access memory direct access method direct access method {=dam} direct access method--dam direct access method，dam direct-access processing direct access programming system direct access storage direct-access storage direct access storage device direct access storage device. direct-access storage device direct access storage device (dasd) direct access storage device(dasd) direct access storage device--dasd direct access storage device{=dasd} direct access storage device，dasd direct access storage dump restore direct access storage dump restore--dasdr