客户给的解释是“the tolerance 0.3 describes a position tolerance on a circleline around the center of the rectangular end. 5 b* S0 u0 L- Q5 r m8 |Because this is a circle and open to all sides this means the tolerance ! K, u6 o6 W# O- d8 u, k2 r: d: Pitself is +-0.3.”公差是0.6吗/