英语词汇“Certified reference materials”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

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单词	Certified reference materials
释义	Certified reference materials 英语例句库 Certified reference material of the high-purity silicasol was prepared by removing impurity ions from the high purity silicasol according to the ion exchange resin. 采用离子交换法实现了高纯硅溶胶主成分与众多杂质离子的分离,并制备了高纯硅溶胶标准物质。 This method was applied to the determination of a ferroniobium certified reference material and the results compare favourably with the certified values. 用本法测定一铌铁标样，测定值与认定值相吻合。英语百科 Certified reference materials Certified Reference Materials (CRMs) are ‘controls’ or standards used to check the quality and metrological traceability of products, to validate analytical measurement methods, or for the calibration of instruments. A certified reference material is a particular form of measurement standard.
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