名词
中文翻译：碰撞向量
同义词：
['collision velocity', 'collision speed']
例句：
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1.The collision vector between the two objects is crucial for their interaction.
两个物体之间的碰撞向量对于它们的相互作用至关重要。
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2. The collision vector can be used to calculate the trajectory of a projectile.
碰撞向量可以用来计算弹丸的轨迹。
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3. The collision vector is a measure of the relative motion between two objects.
碰撞向量是衡量两个物体相对运动的一个度量。