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- The progress of titrimetric analysis of platinum metals at home and abroad since 1980 has been reviewed. 评述了1980年以来国内外铂族金属滴定分析进展。
- Platinum metals are important stratagic metals,the world has attached more and more importance to it. 铂族金属是重要的战略物资,越来越受到世界各国的重视。
- Solvent extraction technique in the refining of platinum metals has many obvious advantages over the traditional precipitation method. 铂族精炼中的溶剂萃取法比传统的沉淀法具有许多优点。
- In China, it is more prominent, about 86% amount of nickel, 90% amount of platinum metals, 7.3% copper comes from nickel-copper sulfide magmatic deposits. 我国的情况更为突出,镍金属储量近86%25、铂90%25以上、铜约7.;3%25均来源于铜镍硫化物岩浆矿床。
- In this paper,methods for separation and concentration of platinum metals are reviewed,and merit and shortcoming for each method are apprised.38 references are cited. 综述了铂族元素的分离富集方法,评价了各种方法的优、缺点。引文38篇。
- In this paper,the main characteristics of platinum metals and the state quo of applications and their researches and development for broad application are sketched out. 本文概述了铂族金属的主要特性及在各个领域研究应用的状况,综述了铂族金属现代制备加工的主要工艺和手段,同时也提出了铂族金属发展的方向。
- Chemical vapor deposition technique(CVD)is available to making highadherent,dense(non-porous)and fine grain platinum metals coatings on the surfaces of refractory metals such as Mo,Re and W et al . 化学气相沉积 (ChemicalVaporDeposition ,CVD)技术可用在高熔点金属如Mo、Re、W等表面制备结合力好的铂族金属涂层。
- Development of FIA in Platinum Metals Analysis 铂族元素的流动注射分析新进展
- Platinum Metals Chemical Vapor Deposition 铂族金属化学气相沉积
- acetylacetonate platinum metal organic complex 乙酰丙酮铂族金属有机配合物
- Recent Advance in Solvent Extraction of Platinum Metals Separation 铂族金属溶剂萃取分离新进展
- Platinum is used to make jewelry. 白金常常用来做珠宝饰物。
- I do not know why acids eat in metals. 我不知道酸腐蚀金属的原因。
- The Present Situation and Prospects of Platinum Metals Resources in China 中国铂族金属资源现状与前景
- Copper and gold are both metals. 铜和金都是金属。
- Metals undergo expansion when heated. 金属加热时会膨胀。
- It follows that acids eat in metals. 由此可知,各种酸对金属都有腐蚀作用。
- Memory has been shown to reside in some metals. 已经证实,记忆存在于某些金属中。
- Metals expand when they are heated. 金属遇热则膨胀。
- Photocatalysis sedimentation--the new technology of recovery of platinum metals 铂族金属回收新技术--光催化沉积法