In the final estimated speed when the vehicle struck the tree was 75 mph.

最后车辆撞到树上时，时速大约为每小时75英里。

From the footprints, scientists can determine how dinosaurs walked, calculate their length, weight and size, and even estimate their walking speed.

通过这些脚印，科学家可以确定恐龙是如何行走的，计算它们的长度、重量和大小，甚至估计它们的行走速度。

The team used that information along with known orbital forces to estimate the spacecraft's speed and position from that point on.

该团队利用这些信息以及已知的轨道应力来估算航天器从那一刻起的速度和位置。

Their research did not estimate the animal's maximum speed but maybe this can help us visualize what that might have looked like.

虽然他们的研究没能计算出霸王龙的最大步行速度，但也许能帮我们绘制出霸王龙的模样。

By measuring the stride length of a trackway we can estimate the speed at which an animal was moving.

通过测量轨道的步幅长度，我们可以估计动物移动的速度。

Likewise, we can estimate the speed of an animal by looking at the shape of its limbs and then comparing them to modern animals.

同样，我们可以通过观察动物四肢的形状然后将它们与现代动物进行比较来估计动物的速度。