類設(shè)計(jì)objectbeam: 物體光束object-to-film distance: 工件至膠片距離objectbeamangle: 物體光束角object-staff: 測量用的objectcomputer: 目標(biāo)計(jì)算機(jī); 執(zhí)行計(jì)算機(jī)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯