ISO14405-1线性尺寸公差修饰符如下理解上主要可以分为以下几类:(1)局部尺寸(Local size),分为如下情形: a.两点尺寸(Two-point size ):在尺寸要素上提取的两相对点的距离Local size>distance between two opposite points taken on the featureof size b.局部球尺寸(Spherical size ):最大内切球的直径〈Localsize〉diameterofthemaximuminscribed