时间-时间-时间交换网络
Time-Time-Time Switching Network TTT
平均修复间隔时间
mean time between repairs
bile vesicle
MTBR
折返出发间隔时间
turn-back departure interval
层间间隔时间
time interval between layers
time interval of two-layer roller compact
地震复发间隔
earthquake recurrence interval
earthquake recurrence intervals
recurrence interval
Earthquake reccurrence
平均复发间隔
average recurrence intervals
无复发时间
Progression-free interval