Parallel axis theorem and k ? nig theorem are deduced from the two laws of rotation 摘要由兩個轉動定律導出了平行軸定理和柯尼希定理。
百科解釋
In physics, the parallel axis theorem or Huygens?Steiner theorem can be used to determine the second moment of area or the mass moment of inertia of a rigid body about any axis, given the body's moment of inertia about a parallel axis through the object's centre of mass and the perpendicular distance (r) between the axes.