In order to define this irrotationality condition mathematically, let us consider the equation of motion in terms of velocities.
为了从数学上确定此条件,我们考虑以速度为未知函数的运动程。
In order to define this irrotationality condition mathematically, let us consider the equation of motion in terms of velocities.
为了从数学上确定此条件,我们考虑以速度为未知函数的运动程。
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