| 摘要 |
There is disclosed a set of golf irons which have progressively decreasing displacements between the axis of the shaft and the center of mass projected to the horizontal plane beginning with the long irons and progressing to the short irons. Each iron in the set also has a support column behind the striking face, parabolic shaped horizontal grooves in the striking face, and a flat segment on the sole centered below the center of mass to cause the head to sit squarely at address. The flat segment is progressively positioned below the center of mass so that the flat segment is closer to the leading edge for the long irons than it is for the short irons.
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