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