What do you mean by eccentric and eccentric axes?
Oral expression "ha ~ bias" is the distance between the point of action of the object or force, the distance from the center, the eccentricity along the axis and the eccentricity of the axis, respectively, the distance from the X to the Y.
The eccentricity along the axis and the eccentricity of the eccentric axis represent the eccentricity of the X axis and the eccentricity of the Y axis,
The axis here should be axial, and the heart is the center. The axis deviation is consistent with the axial direction without passing through the centroid. Eccentric eccentric.