速度的测量从物理的角度上粗看并不是一个大问题,大体上有直接测量和间接测量之分,有多种可操作的途径。如果在某个特定的物理情景中,比如在特定的实验中,人们测量速度使用不同的测量方法,则从实验的目的、原理、测量的精度等角度看是否合理和等效呢?针对这个问题,笔者以 The speed measurement is not a big problem from the physical point of view. There are generally direct and indirect measurement points, and there are many ways to operate. If in a particular physical scenario, such as a specific experiment, people use different measurement methods for measuring speed, then is it reasonable and equivalent from the perspective of the purpose, principle, and accuracy of the experiment? The author