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. 6 h9 Z: ^$ g% B7 K- L% K" VBecause this is a circle and open to all sides this means the tolerance8 K6 r+ L- m1 b/ H: p2 _ itself is +-0.3.”公差是0.6吗/