略語大辞典 [AERO] 33 TBO* time between overhall, ref. MTTR (航空機の)オーバーホール間隔.time between overhall, ref. MTTR; MTBR; TBO; TSO; [AERO:Traf:Std]. 丸善「略語大辞典」JLogosID : 11851390