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light platinum metals 轻铂金属
light platinum metal 铂类轻金属
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
I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
acetylacetonate platinum metal organic complex 乙酰丙酮铂族金属有机配合物
The portrait shows fine effects of light and shade. 这幅肖像画的浓淡色调表现得很好。
A red light is usually a signal of danger. 红灯通常是危险的信号。
Now I begin to see light on their good intentions. 现在我对他们的良好动机开始有所领会了。
Recent Advance in Solvent Extraction of Platinum Metals Separation 铂族金属溶剂萃取分离新进展
The bright light of the car dazzled me. 这汽车的灯光使我目眩。
But not all these light metals all can suit the manufacturing plane. 并不是所有这些轻金属都能适合制造飞机的。