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1·The discussion has served to emphasize the important role the inertia tensor plays in the discussion of the motion of rigid bodies.

讨论强调了惯性张量在论述刚体运动时所起的重要作用。

2·In the present paper, we derive the inertia tensor, expressed in a dyadic form, from the traditional definition of the moment of inertia in physics.

本文从物理学中转动惯量的传统定义出发，导出以并矢形式表示的惯量张量。

3·Therefore the unified expression for the components of a tensor of inertia in some textbooks is wrong.

因此，有的教材给出的惯量张量各分量的统一表达式实际上是错误的。