double e fault双误;双发失误
double machine fault tolerant双机容错
double-fault双发失误;双误;意指连续两次发球都失败;两次发球失误
double ground fault双接地故障;两线接地故障
double earth fault[电] 双相接地故障
double linetoground fault地故障
double-fault depression双断凹陷
double phasetoearth fault双相对地故障
double phase fault双相短路故障
N-COUNT(可数名词) In tennis, if a player serves a double fault, they make a mistake with both serves and lose the point. (网球)双发失误