时间-时间-时间交换网络
Time-Time-Time Switching Network TTT
一次调频稳定时间
stability time of primary frequency modulation
音视频信号时间差
Audio and Video Signal Time Difference
标准频时信号
standard frequency and time signal
标准频时信号台
standard frequency and time signal station
标准频时信号业务
standard frequency and time signal service
标准时间信号发射
standard-time-signal emission
残流稳定时间
Decay Time for Residual Current
长时间稳定性和收敛性
long time stability and convergence
定时信号输出总线
TSBO Timing Signal Bus Out
固定时间间隔
fixed time interval
constant release interval
FTI Fixed Time Interval
FTI
固定时间间隔测量法
vested time-interval measuring way