NS-EN ISO 2692:2014
产品几何规格 (GPS) 几何公差 最大材料要求 (MMR)、最小材料要求 (LMR) 和互易要求 (RPR) (ISO 2692:2014)
Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR) (ISO 2692:2014)