短語詞組短語analysis of time travel 時程分析value of travel time 出行時間價值distribution of travel time 路逕行程時間分佈travel time of passengers 居民出行時間travel time of p wave p 波走時relative costs of travel time 出行時間相對費用asymmetric terms of travel time 走時非對稱項travel time of flood wave 洪水波傳播時間 返回 time of travel