单词	economical span
释义	economical span 经济跨度
随便看	universal eveloping algebra Universal Event Recording System universal evolution universal evolution criterion universal examination universal excavator universal exchange universal exhaust gas oxygen universal existence universal experiment course universal exposuremeter universal extensible joint universal extension pulley universal extension surgery table universal external cylindrical grinding machine universal external grinder universal external tool and cutter grinder Universal Extractor : Download it from here Universal extrusion tooling universal facepiece universal face plate universal factorization Universal factor of memory universal facts about human nature universal fair