995 resultados para 209-1270B


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Al2O3B2O3Ce2O3体系相关系的研究尤洪鹏洪广言(中国科学院长春应用化学研究所,长春130022)InvestigationonPhaseRelationsintheSystemAl2O3B2O3Ce2O3YouHongpengHon...

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本文简略介绍了我国稀土湿法冶金工业中的一些化工问题,具体分析了解决问题的可能途径。提出了对革新现有的稀土生产流程应进行的基础和应用研究的几点看法。

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This paper deals with the correction of mode II strain energy release rate, G(II), of composite laminates measured with the end-notched flexure (ENF) specimen. A derivation is given of the expressions for compliance and strain energy release rate, in whic

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本文用离子色谱法,电导检测器,对不同部位人参含氟量分布进行了测定。样品称量范围5~15mg。仪器最小检测下限为0.05μg/ml。该方法与分光光度法对照,结果基本一致。