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矿物表面     
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  mineral surface
     THE PRESENT STATUS AND DEVELOPMENT ABOUT MINERAL SURFACE MODIFICATION
     矿物表面改性研究的现状与发展
短句来源
     POINTS OF ZERO CHARGE OF MINERAL SURFACE——CALCULATION AND APPLICATION IN FLOTATION
     矿物表面零电点的计算方法与浮选应用
短句来源
     The activeeffect of lead ion on sphalerite,the changes of(Pb~(2+))in pulp along with oxidized con-dition of mineral surface and pH values and the resulting chain reaction with dosagesof zinc sulphate were discussed.
     讨论了铅离子对闪锌矿的活化作用,研究了矿浆中[Pb~(2+)]随矿物表面氧化条件和随 pH值变化的情况以及由此引起多用硫酸锌引发连锁反应等现象。
短句来源
     Based on those results, this paper has deduced that mineral surface's hydroxylation and tourmaline's electrode reaction are the reasons of the change on solution' pH.
     提出了溶液的pH值的改变是受到矿物表面羟基化与电气石的电极反应的影响结果
短句来源
     The authors investigate the dissolving behavioutr of magnesite and its associated mineral-dolomite, and thereby predicate and determine their zero potential and study the effect of Ca~(2+) and Mg~(2+) on the mineral surface's dynamic potential.
     通过对菱镁矿及其主要伴生矿物白云石溶解行为的研究,推测并测定了菱镁矿、白云石的零电点,研究了Ca~(2+)、Mg~(2+)离子对矿物表面电动电位的影响。
短句来源
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  mineral surfaces
     0—20 g/L HCP solutions create at 70℃ interfacial tension of 11.3—8.87 mN/m with degased crude oil(of viscosity 121.8 mPa·s) from Gudao C2S district,alterate oil-wet and weakly water-wet mineral surfaces in direction of increasing surface hydrophility as shown by their decreased contact angle values.
     0~20 g/L HCP溶液70℃下与孤岛中二南脱气原油(黏度121.8 mPa.s)间的界面张力为11.3~8.87 mN/m,室温下使油湿、弱水湿矿物表面接触角变小,亲水性增强;
短句来源
     In this paper,the chelating ability,the interaction mechanism between CF collector and the metal ions(Zn~(2+),Pb~(2+) and Fe~(3+)) on mineral surfaces have been examined by means of nephelometric titration,XPS tests and the calculation of the group electronegativity of the flotation reagent.
     通过浊度滴定、浮选剂基团电负性计算和X射线光电子能谱测试等方法,研究了CF药剂与金属离子(Zn2+、Pb2+、Fe3+)的螯合能力以及与矿物表面的作用机理。
短句来源
     A Study on the Stability of Collector Adsorption Layers on Copper and Zinc Mineral Surfaces
     铜锌矿物表面捕收剂吸附层稳定性研究
短句来源
     Adsorption of dextrin on mineral surfaces
     矿物表面金属离子组分与糊精的相互作用(Ⅰ)──糊精在矿物表面的吸附
短句来源
     Influence of the Mutual Transformation of Mineral Surfaces on the Flotation of Salt Type Mineral Coexistence System
     矿物表面的相互转化对盐类矿物共存体系浮选的影响
短句来源
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  minerals surface
     The Present Station and Prospect about Minerals Surface Modification(Ⅰ)──Methods and Installations
     矿物表面改性研究的现状与前景展望(Ⅰ)──方法与装置设备
短句来源
     Abstract This paper introduces the present station of methods and installation about minerals surface modification, and puts forward the prospect of these research.
     介绍了非金属矿物表面改性领域中改性方法和改性装置设备的研究与应用现状,提出了两者未来的研究与发展方向。
短句来源
     The results of measurements of minerals surface characteristics could offer more accurate data for the development of new applications of the clay minerals materials.
     矿物表面特征测试的结果可以为粘土类工业矿物的环境应用和材料开发提供基础数据
短句来源
  galena surface
     Diethyldithiocarbamate(DDTC) is the most suitable collector for galena and the suitable potential at which DDTC and galena react each other to form PbD 2 ranges from 0 to 0.2 V. Moreover, DDTC can depress the surface overoxidation of galena surface. Also,the study has shown that in the range of -0.9 to 0.6 V,the hydrophobic PbD 2 can be firmly adsorbed on the surface of galena.
     二乙基二硫代氨基甲酸盐 (DDTC)是方铅矿最有效的捕收剂。 DDTC和方铅矿作用生成疏水产物二乙基二硫代氨基甲酸铅 (PbD2 )的合适电位是 0~ 0 .2V ,同时 ,DDTC的存在还会抑制方铅矿表面的过度氧化 ,疏水产物PbD2 在矿物表面牢固吸附 ,在 -0 .9~ 0 .6V电位范围内稳定存在
短句来源
     The electronic structure of the galena surface and absorbing models of flotation reagents on the galena surface are studied using molecular dynamics simulation program Materials Studio and empirical quantum program MOAN,which can analyze the interaction of molecular fragments and molecular orbital component.
     应用带有分子碎片相互作用、分子轨道分析等功能的量子化学程序MOAN及分子动力学模拟软件MaterialsStudio计算了矿物表面的电子结构及其与巯基类浮选剂的相互作用 .
短句来源
     The flotation mechanism is reasonably explained, and several electronic transfer styles of flotation reagents with the galena surface are discussed. The p π conjugate system of mercaptobenzo flotation reagent is very important in flotation, and the molecular number of monolayer saturation absorbing in unit area of galena surface calculated is in correspondences with the experimental value.
     确定了矿物相的最可几计算模型 ,提出了合理的吸附作用模型及浮选剂在矿物表面的吸附排列方式 ,对其吸附作用机理及吸附剂与矿物表面之间的多种电子转移形式作了合理解释 ,发现巯基苯并类浮选剂的p π共轭结构对浮选作用有重要的影响 ,从理论上确定的矿物表面单位面积内单层饱和吸附分子数与实验值接近 .
短句来源
     Surface corrosion and passivation behaviors of galena are investigated by electrochemical techniques. Tafel and EIS spectrum demonstrate that formation of PbCO_3 passivation film on the surface of galena results in increasing of galena surface resistance and decreasing of reaction current and leaching rate of galena.
     利用电化学测试方法(Tafel曲线、交流阻抗法)研究了方铅矿矿物表面的腐蚀钝化行为,结果表明,Pb CO3钝化膜的形成,导致矿物表面电阻增加,反应电流减小,浸出率降低。
短句来源

 

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      mineral surface
    Enzymic oxidation of phenolic precursors on the mineral surface was substantially more rapid than abiotic oxidation and led to synthesis of a highly polymeric fraction with a molecular weight over 75 kDa.
          
    Possible types of anion-cation packing of mineral surface were evaluated.
          
    Interactions between the dissolved mineral species and other mineral surface were investigated using solution chemistry calculation,ζ-potential measurement, AES analysis and flotation tests.
          
    Study on interaction energy between flotation reagent and mineral surface
          
    The interaction between a flotation reagent and mineral surface not only depends on the bonding atom, but also depends on the adjacent atom of mineral surface, a flotation reagent and the medium in the system of flotation.
          
    更多          
      mineral surfaces
    Types of anion-cation packing of mineral surfaces and their manifestation in various processes
          
    It was shown that there are two distinct types (I and II) of mineral surfaces differing in the character of crystallization of gold nanoparticles during decoration.
          
    The use of UNIFAC for the estimation of adhesion enhancement between polymers and mineral surfaces treated with silane coupling
          
    Compatibility is enhanced between polymers and mineral surfaces through the use of silane coupling agents of varying chemistry.
          
    The experimental results on adsorption of ions pb2+, Zn2+ and Ag+ onto mineral surfaces in a mix system show that the reaction kinetics of adions adsorbed onto mineral surfaces was mainly controlled by their diffusion rates in solution.
          
    更多          
      galena surface
    A galvanic contact between galena (or sphalerite) and pyrite contributes to decreasing the content of zinc in lead concentrate, and enhances remarkably the absorption of collector on the galena surface.
          
    Transistor action on natural galena surface after heat treatment with H2S
          
    The galena surface over the outermost inclusions is plastically deformed, and specific depressions, or infrequently bulges, are formed.
          
    Furthermore, metallic lead can begin to deposit on the galena surface when the potential drops below about -330 mV SHE.
          
    Second, the enhancement of the dissolution rate observable at high sodium chloride concentration may be due to the specific adsorption of chloride ions or the surface complexing of chloride ions on the galena surface.
          


    ~~

    本文以含钛矿物为主研究某些氧化物矿物的表面电性质,几个捕收剂及调整剂在这些矿物表面的吸附及它们的可浮性三者之间的相互关系.讨论了氧化物矿物表面双电层的结构及介质pH值的影响.证明了氢离子和氢氧根离子是这些氧化物矿物的定位离子.在研究中观察到,对这些矿物而言,其电动电位的代数值,烷基硫酸盐类型捕收剂的吸附量及矿物的可浮性的增減有一致关系.证实了如下结论:阴离子捕牧剂在某些非硫化矿物表面的吸附及对这些矿物的捕收能力随其表面正电荷的增加而提高;反之,阳离子捕收剂的吸附及捕收能力则随这些矿物表面负电荷的增加而增加.以黑钨矿和萤石的浮选为例,检验了所得结论.电动电位测定和浮选的结果又一次证明了上述结论.因此,旷物表面电性质的研究看来可以为矿物的浮选分离提供一些重要线索.

    This paper deals with the upgrading of the copper concentrate from

    本文简要地介绍了用CMC提高河北铜矿铜精矿品位,降低氧化镁含量的小型试验结果。根据矿石组成和矿物构造,作者认为河北铜矿铜精矿品位低的基本原因是天然可浮性很好的层状硅酸盐矿物如滑石,以及黄铁矿和磁黄铁矿等进入了泡沫产品。根据CMC分子结构和化学性质,对CAC与矿物表面作用机理作了简要的探讨。

    In this paper,the bonding factor and hydrophobic—hydrophilic factor in

    本文用分子轨道理论指数和基团电负性研究浮选结构-活性关系三种因素中的价键因素和疏水-亲水因素。用计算数据组成一组药剂活性判据,预测药剂浮选行为(作用专属性,选择性和能力大小)以及解释机理,讨论药剂在矿物表面化学吸附时键合原子位置,价键种类,分子中极性/非极性结构关系及各原子间的相互影响等,为寻找特定性能药剂指出途径。

     
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