金属度

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金属度金属度
  1. 银河系厚盘恒星的年龄-金属度关系

    Age - Metallicity Relation of Stars in the Galactic Thick Disk

  2. 球状星团金属度的分布表明球状星团可能有三个形成时期,分别与三类形成模型对应;

    The metal1icity distributions imply three probab1e epochs of globular cluster formation corresponding to three kinds of formation models .

  3. 用X射线测定金属晶粒度的新计算方法

    The New Calculating Method Used for Measuring the Grain Size of Metal by X-rays

  4. 一种提高Mo-Ni/Al2O3催化剂金属分散度的方法研究

    Study on Method of Enhancing the Dispersion of Mo , Ni onto the Mo Ni / Al 2O 3 Catalyst

  5. 用H2-O2滴定法测得0.3(wt)%Pd/Al2O3的金属分散度为22.0%。

    The metal dispersion of 0.3 % Pd / Al_2O_3 is 22.0 % measured by H_2-O_2 titration .

  6. 结果表明,与普通浸渍法相比,超声浸渍法制备的负载型Pd催化剂金属分散度明显提高,因而对蒽醌加氢反应表现出较高的催化活性。

    The results show that the activity of the supported catalysts prepared with ultrasonic treatment for anthraquinone hydrogenation is higher than those without ultrasonic treatment . Methods : WHO standard bioassay ( dipping test ) .

  7. 介绍了采用脉冲色谱技术,用氢滴定吸附在钯/炭(Pd/C)催化剂中Pd表面上的氧,从而建立了测定催化剂上金属分散度的方法。

    This paper introduced the determination method of metal dispersion degree in Pd / C catalyst with pulse chromatogram technology to adsorb the oxygen in Pd surface of the Pd / C catalyst with hydrogen titration .

  8. Mo-Ni-P浸渍液性质与催化剂中金属分散度的关系

    Relationship Between Property of Mo-Ni-P Solution of Impregnation and Dispersity of Metal on Catalyst

  9. 利用TPD(或TP)-IR动态方法,详细研究了由Rh4(CO)(12)衍生的Rh4/Al2O3上金属分散度、CO覆盖和表面碳对CO吸附类型的影响。

    Effects of dispersion of Rh , CO coverage and surface carbon on the adsorption types of CO over Rh4 / Al2O3 derived from Rh4 ( CO ) 12 have been investigated in detail by using TPD ( or TP ) - IR dynamic method .

  10. 当需要大致估计金属晶粒度时,新方法是有价值的。

    It is valuable when the grain size of metal is estimated approximately .

  11. 快速再结晶退火过程金属晶粒度的计算

    Prediction of the Grain Size in Rapid Recrystallization Annealing

  12. 液态金属清洁度在线检测技术综述

    Review on Online Cleanness Testing Technique of Metallic Molten

  13. 脉冲色谱氢氧滴定法测定Pd/C催化剂上的金属分散度

    Determination of Metal Dispersion Degree in Pd / C Catalyst with Pulse Chromatogram Hydro-oxygen Titration Method

  14. 提出了控制合金成分、提高金属纯洁度的方法,重点提出了解决扁铸锭裂纹的措施。

    The methods about controlling alloy components and increasing melt purity were presented . The methods of preventing casting crack were presented .

  15. 利用化学吸附仪中的脉冲吸附技术还可对催化剂的酸性、表面金属分散度、金属与载体的相互作用等进行研究。

    In addition , its pulse chemisorption function can provide valuable information about surface acidity , surface metal dispersion and the interaction between metal and support .

  16. 总结了铸锭晶粒度、第二相质点大小和金属纯洁度对空调箔力学性能的影响,介绍了改善铸锭晶粒结构、减小第二相质点尺寸和减少金属夹渣的方法。

    The influence of slab grain size , dimension of second phase particle and metallic purity on the mechanical property of the foils for air-conditions are summarized .

  17. 在铝板带铸轧生产过程中施加超声处理,改善了成分偏析,细化了铝金属晶粒度,产品质量大大提高。

    The ultrasonic leading in aluminum cast-rolling process can improve improve the ultrasonic composition segregation , detailed the aluminum metal crystallite size , and the quality of product is greatly improved .

  18. 当前废线路板的主流处理技术是机械物理法,但机械物理法在破碎过程中存在破碎设备磨损严重,金属解离度低等限制因素。

    The mainstream technique of waste PCB treatment is physical mechanics method . However , the abrasion of the crushing machine during the smash procedure limits its application . The low level of metal dissociation degree is also a problem .

  19. 比较了锤式粉碎机、振动磨和微粉碎机在常温条件下粉碎线路板时,金属解离度、粒级分布、金属分布率以及颗粒形状的差别,探讨了线路板的解离机理。

    The metal liberation degree , particle size distribution , metal distribution and particle shape were compared and analyzed under three conventional crushers , viz hammer mill , vibrating mill and shredder . The liberation mechanics of PWBs were discussed based on liberation degree of metal composition .

  20. La2O3有增加金属Ni分散度的作用,其含量低于6%时,催化活性随La含量增加而上升。

    The lanthana increased the dispersity of metallic Ni and the catalytic activity increased with the increase of La_2O_3 content ( in the range of 0-6 % ) .

  21. 多孔金属通孔度的控制

    Control of the degree of pore - opening for porous metals

  22. 测量金属膜粗糙度的表面等离子激元光谱方法

    Surface Plasmon Spectroscopy for Measuring the Surface Roughness of Metallic Films

  23. 扫描隧道显微镜在金属表面粗糙度检测上的应用

    Application of Scanning Tunneling Microscopy on the Roughness Measurement of Metal Surface

  24. 这金属因刚度强而产生裂纹。

    The rigidity of the metal caused it to crack .

  25. 废水厌氧处理系统微量金属生物有效度及影响因素

    Bioavailability of Trace Metals in Anaerobic Wastewater Treatment System and Its Affecting Factors

  26. 金属表面光滑度对第一类金属电极电极电势的影响

    Surface Smooth Level of Metal Makes That Electric Potential of First Metal Electrode be Reduced

  27. 同时,建立了利用红外反射光谱法表征金属表面光洁度的方法。

    Also , the testing method based on FT-Infrared is developed to demonstrate metal surface smoothness .

  28. 起重机金属结构可靠度分析

    Structural Reliability Analysis of the Derrick

  29. 江西永平地区铜多金属成矿有利度评价

    The Appraisal of Favorableness to Ore-Forming of Copper and Polymetallic Ore in YongPing of Jiang Xi Province

  30. 深海浅地层剖面特征及其与多金属结核富集度的关系

    Features of subbottom profile in the deep sea and the relationship of the abundance of polymetallic nodules