短語詞組短語longitudinal direction gradient 縱向梯度longitudinal temperature gradient 縱向溫度梯度the longitudinal road gradient 路面傾斜度minimum longitudinal gradient 最小縱坡maximum longitudinal gradient 最大縱坡maximum negotiable longitudinal gradient [機(jī)]能通過的最大縱向坡度average longitudinal gradient 平均縱坡steep longitudinal gradient 大縱坡longitudinal gradient difference 縱坡差 返回 longitudinal gradient