一级标准物质 meaning in English
primary standard substance
Examples
- Technical norm of primary reference material
一级标准物质技术规范 - The present paper has studied and analysied determining aluminum of plant specimen , founded a simple and accurate determining method , provided accurate determinied data for country grade a criterion material
摘要本文对植物样品中铝的测定进行了研究和探讨，建立了一套简便易行、准确可靠的植物样品中铝的分析方法。用该方法为国家一级标准物质植物标样提供了准确的定值数据。 - This paper describes seven pieces of newly - developed state grade standard materials , which greatly enrich the available geochemical standard materials of gsr and gsd series in species , element content and combinatory characterustics
摘要简要介绍新近完成的7个国家一级标准物质的研制成果，其在品种上和元素的含量与组合特徵上是对已有gsr和gsd系列地球化学标准物质的重要补充。