【摘要】 通过示例，对相关要求中包容要求、最大实体要求及可逆要求、最小实体要求及可逆要求下有关尺寸、术语及检测等问题进行差异分析，得出不同要求下有关尺寸的计算和测量方法。同时通过对各种要求的利弊所做的进一步分析和论证，为合理地使用公差原则提供了证据。更多还原

【Abstract】 This paper based on typical example, analyzes the difference about Size, Function, inspection to velated vequirement ER, MMR and RR, LMR and RR, get’s difference requirement sire’s computer and inspection method. discusses proof advantages and disadvantages to difference requirement to provide proof for reasonable using tolevance principle.更多还原