新国家标准《公差原则》与其旧标准的对比

The comparison of new national standard on "tolerancing principle"with the old one

分别对新国家标准《公差原则》和《形状和位置公差 最大实体要求、最小实体要求和可逆要求》与其相应的ISO标准和旧国标进行了对比研究 。

The new national standard on'tolerancing principle'and'geometrical tolerancing-maximum material requirement,least material requirement and reciprociey requirement'are compared with ISO and old national standard.The differeces have been investigated.