习用: habitually use符号: character; sign; symbol; mar ...采用符号: symbolization常用符号: common marks and symbols常用符号表: legend of symbols调用符号, 呼号: call sign共用符号表: gst global symbol table惯用符号: conventional mark; conventional sign; conventional symbol实用符号: utility symbols通用符号: conventional sign; conventional symbol; general symbol(s); universal symbol无作用符号: ignove现用符号: current operation symbol引用符号: hook; quotation mark; quote symbol; reference to symbol应用符号: plain bearings-applications用符号表示: symbolize专用符号: discrete symbol作用符号: functional character编辑实用符号: editing utility symbols海洋惯用符号: sea conditional sign机床通用符号: graphical symbols for use on equipment-common symbols for machine tools建立实用符号: create utility symblos热传导用符号: standard symbols for heat transmission引用符号, 引证符号: quote symbol电焊设备通用符号: graphical symbols for use on equipment-common symbols for electric welding equipment符号串的引用符: string quote
