| 摘要 |
A golf ball with a precise spin rate is disclosed. The distribution of weight among the layers within the golf ball relative to a centroid radius is realized to precisely control the moment of inertia of the ball. In accordance to one aspect of the present invention, the innermost core of the ball is made from a specific gravity reduced material, and a thin dense layer is accurately located either inside or outside of the centroid radius to create a high spin ball or a low spin ball, respectively, with a high compression and soft feel.
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