standard frequency and time signal 标准频时信号; 校准频率和时间讯号
standard frequency and time signal service 标准频时信号业务
standard frequency and time signal-satellite service 卫星标准频时信号业务
Standard time and frequency 标准时间和频率
Standard time and frequency system 时频基准系统
Time and frequency signal 时频信号
Frequency Time Standard 频率时间标准
standard frequency station 标电台; 标准频率电台; 标﹝准﹞频﹝率﹞电台
standard of accurate time and frequency 时间频率标准
standard time signal satellite 标准时间讯号卫星
standard-time-signal emission 标准时间信号发射
time-frequency standard 时间频率标准
standard frequency signal 标信号
correlation in time and frequency domain 时频域相关
FATDL Frequency And Time Division Data Link 频率和时间分开的数据链路
FFT analysis in frequency and time domain FFT时频域分析
frequency and time division data line 频分与时分资料线
frequency and time domain analysis 频、时域分析
frequency and time granularity 时频资源粒度