Using Eh-pH diagram and different geochemical characters of element with electrovalence change,stability of minerals in the nature,and coexisting relation and migration capability of elements with different electrovalence .
自然界中的变价元素广泛存在,不同价态的元素具有不同的地球化学性状,反映了不同的氧化还原环境,在成矿过程中形成各具特征的元素组合和矿物组合。
Study on extraction of valuable elements, exploitation of beneficial components and utilization of useful minerals for the mineral resources
矿物资源有价元素提取有益组分与有用矿物利用
By means of examination in the laboratory and search of the literature and datum from home and abroad,some techniques and methods of extracting valuable elements from coal gangue and manufacturing high-attaching value chemical engineering products by using coal gangue were summarized.
通过实验室研究和对国内外文献资料的调研,综述了从煤矸石中提取有价元素及利用煤矸石深加工制造高附加值化工产品的技术和方法。
And extracting valuable elements from coal fly ash is an important way of improving comprehensive utilization of it.
粉煤灰的综合利用是目前我国煤炭工业的一件大事,而从粉煤灰中提取有价元素是提高粉煤灰综合利用价值的重要途径之一。
The element valence, crystalline phase, microstructure have been studied by means of XPS, XRD and SEM.
08)压电陶瓷的元素价态,相组成以及显微结构。
The crystallographic phase,microstructure and element valence were studied by means of XRD,SEM and XPS.
95-xO3压电陶瓷的相组成,显微结构和元素价态。
The crystallographic phase,element valence and microstructure of PMSZT+zCr_2O_3(z=0.
8%,质量分数)陶瓷的相组成,元素价态以及显微结构。
a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium.
一种稀土属黄色多价元素，与铈、镧、镨共生于独居石和氟碳锑矿中。
On Di-factor Axiology;
“二因素价值论”——对价值源泉和价值量决定的一种多元论解析
a hard brittle blue-white multivalent metallic element; resistant to corrosion and tarnishing.
一种多价金属元素，坚硬、易碎、蓝白色，防腐防锈。
a rare polyvalent metallic element of the platinum group; it is found associated with platinum.
一种稀有的多价铂系金属元素，与铂共生。
Scientific and Pluralistic Teaching in Drawing
科学性与多元语境——论当代素描教学的价值取向
Russell : Not as much as the man asked for. He wanted $45.
罗素：没有那人开价那么多。他要四十五元。
Evaluation of college students' comprehensive quality based on multivariate statistical methods
应用多元统计方法评价高职学生综合素质研究
Labor Value Theory: Multi-factors in Value Formation and Importance of Labor Factor;
劳动价值论:价值形成的多元性与劳动要素重要性的统一
The low mineral-salt and richly carbonated water in these springs is rich in trace elements and has good therapeutic value.
泉水属低矿化重碳酸泉水，含有多种元素，有很高的医疗价值。
a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel.
一种性质类似铬和钨的多价金属元素，用于加固钢。
The Research on the Risk Factors Analysis and Evaluation of the Unrelated Diversification of Firms;
企业非相关多元化经营风险因素分析与评价研究
Comprehensive evaluation of multidimensional matter elements for modern agricultural development in Guangxi and analysis of its constraint factors;
广西现代农业发展水平多维物元综合评价及其制约因素分析
Constructing the Index System of Evaluating University Teachers Comprehensive Quality Based on Multiple Evaluating Model;
基于多元评价模型构建高校教师综合素质评估指标体系
A Multiple Regression Analysis of Investment and Speculation Impact on China's Real Estate Prices
投资和投机因素对我国房地产价格影响的多元回归分析
How is the U. S. dollar today ?
今天美元市价多少?
a hard brittle gray polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals.
硬而脆的灰色多价金属元素，与铁相似但无磁性，用于制钢，存在与许多矿物中。
Multi-dimension and One-dimension of Value in Theory and Reality;
理论和现实二维中的价值“多元”与“一元”
a bivalent and trivalent metallic element of the rare earth group.
稀土属二价和三价金属元素。