2) national gathering of standard farmland
标准样地国家级汇总
1.
Framework of the arable-land quality dynamic monitoring sites through national gathering of standard farmland;
基于标准样地国家级汇总的耕地质量动态监测点构架研究
3) national reference materials
国家标准样品
1.
Research & manufacture of national reference materials-fiber polyester chip;
纤维级聚酯切片国家标准样品研制
4) national primary standard
国家一级标准
5) national standard
国家标准
1.
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
2.
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
3.
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
6) National standards
国家标准
1.
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
2.
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
3.
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
补充资料：德国国家标准(见德国标准化学会、德国标准体系)
德国国家标准(见德国标准化学会、德国标准体系)
National Standards of Germany: see Deutsches Institut für Normung, DIN;standards system of Germany
Oeguo Guol心日icozhun德国国家标准(Natio.吐S加Ln山切曲of Gen”旧ny)见德国标准化学会;德国标准体系。
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