同义词
1)ETD estimated tiem of departure,预计出发时间2)estimated time of departure,估计出发时间;预计开航时间3)ETD (estimated time of departure),预定出发时间4)etd.=estimated time of delivery,预计出货时间5)ETD (estimated time of departure),估计出发时间6)passenger perceived travel time,乘客预计出行时间