Annual Frequency  年频数; 年检查频率

annual frequency of TC  年频数

tropical cyclone annual frequency  热带气旋年频数

Frequency List  频率表

master international frequency list  国际频率总表

Middle frequency-frequency convertor  中频变频器

master radio frequency list  主要无线电频率表

asymmetrical frequency list  不对称频率表

International Frequency List  国际频率表

Mean annual rate of interest for annual working  连年作业平均收利率

audio frequency and video frequency processing  生物燃料电池; 音频和视频处理

Belgium OSB double frequency(work-intermediate frequency) Queching machine  比利时OSB双频(工中频)感应淬火机

correlation in frequency domain and frequency domain  时频相关性

cyclic frequency-spectrum frequency domain  循环频率-谱频率域

deteeting the ground point with low frequency electric current signal changing its frequency  低频信号变频探测

double frequency(low intermediate frequency) Queching machine  共昌双频(低中频)感应淬火机

flashing frequency， critical flicker frequency  临界闪变频率; 停闪频率

FMVFT Frequency Modulated Voice Frequency Telegraph  调频音频电报

Frequency Conversion to Working Frequency  变频转工频