Discussion on some shortages of national standards of PVC-U water supply and drainage pipes and pipe fittings;
PVC-U给排水管材、管件国家标准中相关不足的商榷
An assumption on setting up national standard of BB fertilizer based on its developing actualities;
从掺混肥料的发展现状谈其国家标准制定的设想
The national standard of determining Ca, Mg and S contents in compound fertilizer;
关于《复混肥料中钙、镁、硫含量的测定》的国家标准
The processing methods of overburden layer on Mg alloys and the correlative national standards;
镁合金表面覆盖层形成方法及相关国家标准
Analysis on national standards of reflective membrane and its application at present;
反光膜国家标准与产品现状及应用分析
Study on the Determination Method of Molybdenum Quantity in National Standards Molybdenum Ore Concentrate;
国家标准钼精矿中钼的测定方法探讨
Explanation on state standard of Chinese steamed bread based on wheat flour;
《小麦粉馒头》国家标准解读
Discussion on methyl alcohol & lead in state standard GB2757-1981;
对国家标准GB2757-1981中甲醇和铅的讨论
Analyzing the Modification of State Standard"Automatic Rail-weigh Bridges"
国家标准《自动轨道衡》修订分析
Algorithm of intersecting dash dot lines of engineering drawings in accord with GB;
符合国家标准的工程图中相交点画线算法
Two ISO standards and three GB standards are introduced.
介绍了两项关于医学实验室的国际标准 ,三项关于医学实验室的国家标准 ;对我国测量控制技术扩展在医学上的应用提出了建议。
It cites some errors of weld symbol representation on the production drawings,and compares them with the representation in GB in this paper.
列举工厂企业产品生产图样中常见的焊缝符号标注错误 ,并将其与国家标准中的表示法进行了对
The writer picks up a few imperfections from"General principles of presentation"of the national standard ness of the latest emendation,oppugns seriousness of establishment and emendation,and contributes a few viable opinions.
国家标准化文件如同工程技术界的法律文件。
Therefore the dimensions drawing in this way cant conform with the National Standard.
并且论述了如何在AutoCAD中设定系统参数使其按照机械制图国家标准的要求来标注尺寸,以及在AutoCAD中标注尺寸的基本方法、系统提供的特殊符号在尺寸标注中的其它运用。
This paper discusses the table in mechanical drawing according with the national standard in using AUTOCAD, and introduces the realization methods in the dimension, the tolerance of the figure and place and non 1:1 scale.
主要研究了利用AUTOCAD绘制工程图时 ,如何使图纸上的标注符合《机械制图》国家标准 ,介绍了尺寸标注、极限与配合、形状与位置公差和非 1 :1比例下的尺寸标注的实现方法 ,这些实现方法对正确设计工程图 ,有着实际的指导作
national bureau of standards
国家标准局国家标准局
National Bureau of Standards (NBS)
(美国) 国家标准局
NSRDS (National Standard Reference Data System)
国家标准基准数据体系
NBS A time scale
国家标准局原子时标
China Law of Standardization requires in Article7: National standards and trade standards shall be classified into compulsory standards and voluntary standards.
中国的国家标准化法规定：“国家标准、业标准分强制性和推荐性标准。
American National Standard Control
美国国家标准控制字符
ANSC (American National Standards Committee)
美国国家标准委员会
American National Standards Institute
美国国家标准化协会
Annex ××××/Annexes ×××× of this national standard is/are normative
本国家标准附录××××是标准的附录(补充件)
This national standard is not equivalent to IEC(ISO) ××××
本国家标准非等效采用IEC(ISO) ××××标准:
This national standard is identical to IEC(ISO) ××××
本国家标准等同采用IEC(ISO) ××××标准:
This national standard is modified in relation to IEC(ISO) ××××
本国家标准修改(等效)采用IEC(ISO) ××××标准:
This national standard is under the jurisdiction of ××××
本国家标准由××××归口
This national standard was proposed by ××××
本国家标准由××××提出
These products measure up to the national standards.
这些产品达到国家标准。
This national standard is applicable to ......
本国家标准适用于……
This national standard was drafted by ×××
本国家标准由××××起草
This national standard specifies a method of ......
本国家标准规定……的方法