Slight deviations from continuity of surface or uniformity of colour due to accidental damage or wear may be allowed provided that they do not significantly change the characteristics of the surface.

• 由于意外的损坏、磨损或褪色，造成拍面的整体性和色彩上的一致性出现轻微的差异，只要未明显改变拍面的性能，可以允许使用。