The USGA only requires that the golfball's dimple pattern be spherically symmetric.
The USGA only requires that the golfball's dimple pattern be spherically symmetric.
美国高尔夫球协会只要求高尔夫球酒窝式样必须是球面对称的。
The USGA only requires that the golfball's dimple pattern be spherically symmetric.
美国高尔夫球协会只要求高尔夫球酒窝式样必须是球面对称的。