单词	x射线管
释义	X射线管tube， X-rayX射线管x-ray tube
随便看	database language，dbl database-level sharing database-level tracker database link database loading database location database lock database lockout database logging database logging interface block database logic database logical design database logical organization database longevity database machine database maintenance database management database management and reporting time sharing database management batch database management capability database management function database management recovery database management restart database management software data base management system