名词
中文翻译：旅行速度变化系数
同义词：
['旅行速度变化率，旅行速度变化因子']
例句：
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1.The coefficient of travel speed variation is a critical factor in determining the efficiency of transportation systems.
旅行速度变化系数是决定运输系统效率的关键因素。
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2. The coefficient of travel speed variation can vary significantly depending on the type of vehicle and the terrain.
旅行速度变化系数可以根据车辆类型和地形显著变化。
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3.To optimize the design of a highway, it's important to consider the coefficient of travel speed variation.
为了优化高速公路的设计，考虑旅行速度变化系数是很重要的。