A. N. s. I. Standard b1.1-the Unified screw threads Standard that covers manufacturing tolerances of screw threads.
标准B1.1 -包括螺纹制造公差的统一的螺栓螺纹标准。
2
In this paper, the special feature of international standard of geometrical parameter tolerances and the relationship between linear size tolerances and geometrical tolerances are analyzed.
本文分析了几何参数公差，以及线性尺寸公差与几何公差之间关系的国际标准的特点。
3
It is proposed that the standard system of geometrical parameter tolerances and the relationship between the tolerances should be perfected, according to the point of view presented in this paper.