时间-时间-时间交换网络
Time-Time-Time Switching Network TTT
产生拆装行动之平均时间
mean flight time between remove
产生型态2故障之平均时间
mean flight time between maintenance by type 2 failure
产生型态6故障之平均时间
mean flight time between maintenance by type 6 failure
短时平均过零率
short-time average zero-crossing rate
zero cross ratio aver- age in short time
二维三阶时间平均矩谱
2-D third-order time-average moment spectrum