【摘要】 对比、分析研究了常用米制、英制和美制三种螺纹体系标准下的三类螺纹,即联接(紧固)螺纹、管螺纹及传动联接螺纹的标准、标识及主要特征,对我国螺纹新标准的推广和工程技术人员的实践应用具有指导意义。更多还原

【Abstract】 Contrasted and analyzed standard,identification and main feature of three kinds of thread that is connecting thread,pipe threads and drive screw in common metric thread、inch thread and us-made thread standard system.This work has significance of promotion the new standard of thread our country and improving the practical application of engineering and technical personnel.更多还原