释义 |
rare earth elements短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 稀土元素 The application of Rare earth elements in cemented carbides has been one of the national major projects. 稀土硬质合金材料是国家重点科研专题之一。 chemyq The application of rare earth/span> elements, especially the application on textile was briefly described. And the action principle of dyeing and fiber treatment by rare earth elements is analyzed. 本文综合介绍了稀土元素在纺织工业领域的应用,并分析了稀土化合物染色及对纤维材料的作用机理。 chemyq The results by SEM results show that AZ91D alloy by addition rare earth elements possess the features of quasi- cleavage fracture. 扫描电镜分析结果显示添加稀土的镁合金疲劳断口呈现出准解理断裂特征。 cnki The characteristics of P507 latex resin adsorbing rare earth elements is studied by dynamic and static methods. The optimum conditions of separating the rare earth element is established. 采用静动态两种方法较系统地研究了 P507萃淋树脂吸附稀土的性能,并选择了分离稀土总量的最佳条件。 ilib The necessity and possibility of replacement of noble metals by rare earth elements in the automobile exhaust catalyst control technology were elucidated. 阐述了汽车尾气催化净化工艺中用稀土代替贵金属的必要性和可能性。 chemyq The possibility of application of the phenomenon in separative and extractive technology of rare earth elements has been explored. 并探讨了它在稀土分离提取工艺方面应用的可能性。 cnki The results showed that a suitable concentration of rare earth elements in the fermentation medium could increase the activity of glucose isomerase effectively. 实验结果表明:选择适当浓度的硝酸稀土用于嗜酸链霉菌发酵生产葡萄糖异构酶,可以提高酶活水平。 chemyq This study deals extensively with metallogenetic conditions and genetic classification and geological characteristics of weathering crust ion adsorption rare earth elements deposits. 本文主要研究离子吸附型稀土矿床的地质特征、成矿地质条件及矿床类型。 cnki |