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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Impoundments and landfills are the two most widely used; about 77 percent of coal combustion disposal facilities use one or the other.
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There is an ongoing project dealing with the non-combustion disposal of the waste.
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| | Plant samples was treated by oxygen flask and sulphur content was determined by SO- ionography. The method is simple, with short analytic period and satisfied repeatability and recovery. | | 采用氧瓶燃烧处理植物样品,离子色谱法测定吸收液中SO_4~(2-)的方法来确定植物的含硫量,方法简便,分析周期短、重现性和回收率(94.7%~109.2%)均令人满意。 | | 文摘来源 | | Surface oxygen species of Pd catalysts on different supports were investigated by O2TPDMS, TPR techniques. It was found that as a support. TiO2 showed better desorption and regeneration ability of surface oxygen than Al2O3 and CeO2. The reducibility of Pd catalyst was found to be in cerrespondence with its surface oxygen departure. | | 载体对负载钯催化剂表面氧性质的影响陈敏*罗孟飞袁贤鑫(杭州大学催化研究所杭州310028)关键词负载钯催化剂,氧物种1996-11-18收稿,1997-05-28修回工业生产排放的有机废气和汽车尾气是大气污染的主要因素.用催化燃烧处理有机废气是环境保... | | 文摘来源 | | This paper describes a new method of determination of iodide in pharmaceuticals.Treated by combustion in an oxygen flask, tabellae thyroidea were analysed in a mixed medium composed of KNO3、Vc、Na2-EDTA and Triton X- 100 by 2.5 order differential cathodic stripping voltammetry. The trace amount of iodide in tabellae thyroidea was determined and a relative standard deviation of 4.3% (n=5 ) and a recovery of 101.1% were obtained. | | 文章介绍了一种能准确简便测定药物中碘的新方法。经氧瓶燃烧处理后,在由KNO3、Vc、Nα2-EDTA和TritonX-100组成的混合介质中,用2.5次微分阴极溶出伏安法分析了甲状腺片中的微量碘,其相对标准偏差为4.3%(n=5),回收率为101.1%。 | | 文摘来源 | |   | | << 更多相关文摘 |
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