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1.The drag coefficient of the car is 0.5, which means it will only move at half the speed of the engine.
汽车的拖曳系数是0.5，这意味着它只会以发动机速度的一半移动。
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2. The drag coefficient is a measure of how much force a vehicle needs to overcome air resistance to move.
拖曳系数是一个衡量车辆需要克服空气阻力以移动所需的力量的度量。
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3. The drag coefficient is used in various applications, such as aircraft design and aerodynamics.
拖曳系数在各种应用中都有使用，例如飞机设计和空气动力学。