答案是否定的，因为我们不能将其确定下来,我们选用的参考系是否有加速度存在。
The answer is no, because it's impossible to be sure that your reference frame is without any accelerations.
例如，它并不在具有，加速度的参考系中成立。
For instance, it doesn't hold in a reference frame which itself is being accelerated.
惯性参考系也就是不存在任何，形式加速度的参考系，有可能吗？
And an inertial frame of reference would then be a frame in which there are no accelerations of any kind Is that possible?
在计算时对于叶轮区域采用旋转参考系的方式，边界条件分别是进口速度边界条件以及出口压力边界条件。
The moving reference frame is used in the impeller region and the boundary conditions are velocity inlet and pressure outlet.
动点在作复合运动时，若动点的牵连运动只涉及到一个动参考系时，则动点的速度合成已有相应的定理。
There has been theorem developed to expound the multiplex motion of a moving point whose related motion entails only one motion coordinating system.
动点在作复合运动时，若动点的牵连运动只涉及到一个动参考系时，则动点的速度合成已有相应的定理。
There has been theorem developed to expound the multiplex motion of a moving point whose related motion entails only one motion coordinating system.
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