频率: frequency; rate差: send on an errand; dispatch周期: period; cycle; circle; revol ...极岁差周期: polar precession cycle频率差: difference of frequency; frequency difference黑白频率差: white to black frequency swing频率差拍: frequency beat频率差异: fd frequency diversity频率差阈: difference limen for frequency; difference limen of frequency; difference threshold of freuency; dlf相对频率差: relative frequency difference规定频率差度: scheduled frequency offset黑白间频率差: black to white frequency swing话音频率差拍: voice frequency beat基因频率差异: gene frequency difference频率差动继电器: frequency disfferential relay频率周期: frequency period周期频率: cyclic frequency率差: core inflation; rate difference risk difference rd频率差分移相键控解调器: frequency differential phase shift keying demodulator频率飘动周期: periodicity of frequency wobbling周期函数频率: frequency of periodic frunction周期频率调制: periodic frequency modulation周期频率特性: period-frequency relation短周期振荡频率: weathercock frequency短周期振动频率: short-period frequency
