预计航行时间 Estimated time of sailing ; estimated time enroute ; estimated flying time

预计开航时间 [水运] estimated time of sailing ; estimated time of departure ; ETD ESTIMATE DEPARTURE ; ETE

航线预报 [气象] [航] route forecast ; airways forecast ; strip prediction ; Flight Forecast

预备航次 Preliminary Voyage

预计启航时间 estimated time of sailing ; ETS ; estimated time of departure

预定航班 make a reservation ; Book Flights ; Scheduled flights

预计开航日 estimated time of departure ; Etd SHA

预估启航期 estimated time of departure

预订航班 Reserving a Flight ; flight reservation ; book a flight

导航预行计算 [水运] precomputation