2) symmetric tolerance
对称公差
1.
The transfer formula between asymmetric tolerance marking and symmetric tolerance marking is deduced by the mathematical method.
利用数学方法,推导不对称公差标注与对称公差标注间的转换公式。
2.
The process dimension chain is calculated by the dimension chain calculating formula of symmetric tolerance marking.
利用对称公差标注时尺寸链的计算公式,进行工艺尺寸链计算。
3.
A method was put forward and examined in which symmetric tolerance was applied to solve the problem.
分析使用Pro/E软件设计注射模时塑件公差采用基孔制与基轴制会导致成型零件不合格的问题,提出并验证采用对称公差解决问题的办法,并用实例演示不同情况下塑件建模时为取得对称公差的具体操作过程,对使用Pro/E软件设计注射模的成型零件具有重要作用。
3) nominal diameter
公称直径
1.
The characteristic of piping design is standardization and in series,and the standardization of the series of nominal diameter,outside diameter and thickness of pipe is the basis of the standardization of pipe fittings.
其中管道公称直径、外径和壁厚系列的标准化是管道元件标准化的基础。
4) real dimension
公称尺寸
5) nominal pressure
公称压力
1.
02S403 Detail Drawing of Steel Flange in the standard GB/T 9119—2000 covers three types of flange with nominal pressure of 0.
GB/T9119—2000编制的02S403《钢制法兰大样图》中包括最常用的三种公称压力0。
6) nominal bore
公称内径
补充资料：公称
机器性能、图纸尺寸等的规格或标准。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条