Meanwhile, the relationship between the material microscopic structure parameter and the impact speed has been concluded according to the material strength theory and the dynamic strengthened rule.

同时根据材料强度理论和动态强化规律推导出材料微观结构参数与冲击速度之间的关系。

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It isn't enough to avoid the crash, but the impact speed is about half what it would have been without the new system.

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The device saves all the data from each hit, namely the animation, path, putter-face angle at impact and throughout the stroke, angle of attack, tempo, impact speed and swing path distance -- in other words, more information than most players would know what to do with.

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The relationship between impact speed and pedestrian risk of death has been studied previously, but earlier studies based on data from the United States are now several decades old, and more recent studies based on analysis of data from other countries have been limited to cars.

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