单词	滑車兒
释义	同BLOCK
随便看	data service interface (dsi) data service interface {=dsi} data service language data service manager data service request block data service task data service unit data service unit (dsu) data service unit--dsu data service unit{=dsu} data service unit，dsu data set data set access method data set adapter data set catalog dataset catalog data set clock data set clocking data set comparison data set control data set control block data set control block (dscb) data set control block--dscb data set control block{=dscb} data set control block，dscb