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锌铅
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  zinc and lead
    Researh on the Testing Condition of zinc and lead in Copper Alloy
    铜合金中锌铅测定条件的探讨
短句来源
    Application of wet sludge of smelting zinc and lead
    冶炼锌铅湿废渣在水泥熟料烧成中的应用
短句来源
    On the basis of finding that lead is the vital factor to bring patina on galvanized steel sheets, two hypothesizes, colloid film of lead sulfate and the codeposition of zinc and lead, were employed.
    在发现铅是导致电镀锌钢板黑变发生的关键因素的基础上 ,对电镀锌钢板的黑变机理提出了锌铅共沉积假说和硫酸铅胶体膜假说 ;
短句来源
  “锌铅”译为未确定词的双语例句
    It is a Common practice to test Zn and Pb by EDTA Complexing titration or polarometry. But the accuracy and repetition of the results will always be affected by the test condition. This paper is about some useful research work of thetest of Pb and Zn in Copper alloy.
    铜合金中往往含有Pb、Zn、Ni、Co等多种成分,对其中锌铅元素的测定,多采用EDTA络合滴定法或极谱法.但往往因测定条件的不同,影响结果的精度和重观性,本文就铜合金中锌铅的测定条件作了一些有益的探讨.
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  zinc and lead
Although the reaction of α,α-dibromo-α-fluorotoluene with zinc and lead involves formation of fluoro(phenyl)carbene, this procedure is not suitable for the synthesis of 2-fluoro-2-phenylaziridines.
      
The Use of the Mortality Rate of Marine Fish Prelarvae for the Estimation of Zinc and Lead Toxicity
      
According to the results of model experiments with artificial contamination of soil, the flux of zinc and lead from the starting point (from a medium loamy leached chernozem) to the final point (wheat grains) sharply decreases.
      
The adsorption of zinc and lead on hair was dependent on the acidity of the hair and/or the medium in which the hair sample was immersed, suggesting that hair is an ion exchanger.
      
Age- and sex-related differences in zinc and lead levels in human hair
      
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The behaviors of cotton cellulose xanthate forenriching and separating metal elements(copper,zinc,lead,cadmium,bismuth,iron,cobalt,and nickel)havebeen studied. The adsorption curves,deadsorption curvesof five elements,conditions of enrichment and separationand the experimental results are given. It was successfully applied to the determination of micro amonnts of lead andcadrnium in nickel metal and pure nickel salt.

用黄原酯棉对铜、锌、铅、镉、铋、铁、钴、镍等金属离子进行了吸附试验,探索了分离富集条件,给出了5种元素的吸附曲线、脱附曲线和吸附试验结果。作者经过系统的试验,将黄原酯棉用于金属镍及其纯盐类中微量铅、镉的同时分离和测定,获得成功。

On the basis of finding that lead is the vital factor to bring patina on galvanized steel sheets, two hypothesizes, colloid film of lead sulfate and the codeposition of zinc and lead, were employed. The experiments were carried out on the Tyndall phenomenon in zinc sulfate solution, the electrophoresis on interface, chromate treatment parameters, the cleaning after electroplating and the formation of black patina in high humidity to clarify the form of lead existing in bath, plating and chromate film. It is...

On the basis of finding that lead is the vital factor to bring patina on galvanized steel sheets, two hypothesizes, colloid film of lead sulfate and the codeposition of zinc and lead, were employed. The experiments were carried out on the Tyndall phenomenon in zinc sulfate solution, the electrophoresis on interface, chromate treatment parameters, the cleaning after electroplating and the formation of black patina in high humidity to clarify the form of lead existing in bath, plating and chromate film. It is found that the colloidal PbSO 4 in bath is adsorbed on the surface plating during electrolysis and gathered in the outer film of passivated zinc plate. It is proved that the adsorption of lead sulfate colloid on plate accelerates the generation of black patina, and the elimination of colloidal lead sulphate before or after passivation will prevent from black patina.

在发现铅是导致电镀锌钢板黑变发生的关键因素的基础上 ,对电镀锌钢板的黑变机理提出了锌铅共沉积假说和硫酸铅胶体膜假说 ;并对不同工艺中获得的电镀锌钢板进行了黑变培养 ,通过丁达尔和界面电泳实验研究了铅在硫酸锌溶液中的存在形式 ,通过钝化及破胶实验研究了钝化工艺和镀后清洗对黑变的影响 ,验证了黑变是由于硫酸铅胶体膜在镀锌层外表面被吸附而造成的。

Copper alloy Contains Pb.Zn.Ni.Co and many other Components. It is a Common practice to test Zn and Pb by EDTA Complexing titration or polarometry. But the accuracy and repetition of the results will always be affected by the test condition. This paper is about some useful research work of thetest of Pb and Zn in Copper alloy.

铜合金中往往含有Pb、Zn、Ni、Co等多种成分,对其中锌铅元素的测定,多采用EDTA络合滴定法或极谱法.但往往因测定条件的不同,影响结果的精度和重观性,本文就铜合金中锌铅的测定条件作了一些有益的探讨.

 
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