time velocity curve 时间速度曲线
The car real driving cycle usually is a velocity-time curve based on times.
乘用车实际行驶工况通常可表示为基于时间的一段时间-速度曲线。
If you were thinking of a velocity field, that would measure how much fluid is passing through the curve in unit time.
想象一个速度场，它能够度量，单位时间内流体的量。
The curve of evapotranspiration is the typical unimodal sort, but for the difference with the amplitude , velocity , the size and time of the maximum evapotranspiration.
不同天气情况下，作物蒸发蒸腾量的日变化曲线基本相同，都是典型单峰型，变化的幅度、变化速率、峰值出现的时刻以及峰值的大小有差异。
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