Time-Time-Time Switching Network TTT
discrete-time time-delay system
discrete-time time-delayed systems
space-time time-frequency-shift keying(ST-TFSK)
summit time low tide time and flat time of electric usage
actual time over standard time
apparent time=true time
calculating time by time
corrected retention time corrected retention time
cutting peak-time load while rising offpeak-time load
damping time decay time