数字: figure; digit; numeral; char ...和: mix; blend符号: character; sign; symbol; mar ...文字和符号刺激: stimulus of written language and symbols数字和: digital sum概念、量和符号: aerodynamics concepts quantities and symbols aircraft geometry量和符号: aerodynamicsconcepts quantities and symbolspart aerodynamic terms in common use use术语和符号: ball screws-: vocabulary and designation总和符号: sigma notation数字和单位: both a number and a unit数字和年龄: numbers to and age数字和人影: at numbers and figures数字和之差: digital sum variation数量(单位和符号): quantities (units and symbols)缩写词和符号: abbreviations and symbols论数字和博弈: on numbers and games数字和数变化: digital sum variation数字和字母的: number letter插图的编号和符号: callouts and symbols多级脉冲数字和: multilevel pulse code digital sum数字和思想机器: digit and thinking machine本词典使用的缩写和符号: abbreviations and symbols used in the dictionary; abbreviations-used in the dictionary; short forms and symbols used in the dictionary标准国际信号和符号: standardized international signs and symbols单位和符号的一般原则: general principles concerning quantities units and symbols故障树名词术语和符号: terms and symbols of fault tree