基本: basic; fundamental定时: timing; at regular time; fix ...频率: frequency; rate定时频率: timing frequency主定时频率: master timing frequency群延时频率: groudelay frequency瞬时频率: instantaneous frequency◇瞬时频率稳定度 instantaneous frequency stability基本定额: fundamental normae基本定理: hauptsatz fundamental theorem; principal theorem基本定量: basal ration基本定律: fundamental law; philosophy基本定址: base addressing群基本定理: elementary group theory临时频率调制: incidental frequency modulation实时频率分析: real-time frequency analysis瞬时频率特性: temporal frequency characteristics代数基本定理: fundamentalsatz der algebra fundamental theorem of algebra基本定额负载: basic load rating联结基本定理: primary laws of association算术基本定理: fundamental theorem of arithmetic同构基本定理: isomorphism theorem同态基本定理: isomorphism theorem临时频率委员会: provisional frequency board瞬时频率稳定度: instantaneous frequency stability代数学基本定理: fundamental theorem of algebra