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铅和铋
相关语句
  lead and bismuth
     An investigation has been carried out in order to determine the effect of the residual elements lead and bismuth on the hot ductility of powder austenitic stainless steel 316L.
     本文研究了微量杂质铅和铋对粉末冶金奥氏体不锈钢(AISI 316L)热塑性的影响。
短句来源
     Pulsed Laser Evaporation for Detection of Lead and Bismuth with Resonance Ionization Time-of-flight Mass Spectrometry
     脉冲激光蒸发共振电离飞行时间质谱法测定铅和铋同位素
短句来源
     DETERMINATION OF LEAD AND BISMUTH IN SILVER NITRATE BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY
     石墨炉原子吸收法测定硝酸银中的痕量杂质铅和铋
短句来源
     A pulsed Nd:YAG laser (532nm) was used to vaporize lead and bismuth atoms from metal samples at room temperature. These atoms were subsequently detected by pulsed resonance photoioniza-tion and time-of-flight mass spectrometry.
     本文采用532nm脉冲激光蒸发作为共振电离飞行时间质谱测定铅和铋和样品原子化源.
短句来源
     STUDIES ON DERIVAIIVE SPECTROPHOTOMETRY (?).SIMULTANEOUS DETERMTNATION OF MICRO LEAD AND BISMUTH IN TIN BY FORTH DERIVATIVE SPECTROPHOTOMETRY
     导数分光光度法研究——(三).四阶导数分光光度法同时测定纯锡中的微量铅和铋
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  “铅和铋”译为未确定词的双语例句
     Comparison of hydrogen evolution behavior onlead and bismuth in H_2SO_4 solution
     铅和铋在硫酸溶液中的析氢行为比较
短句来源
     Determination of trace Pb and Bi in pure copper by graphite furnace atomic absorption spectrophotometry(GFAAS)
     石墨炉原子吸收光谱法测定纯铜中的痕量铅和铋
短句来源
     Both Pb and Bi increased the tendency to intercrystalline fracture during hot tensile testing.
     铅和铋两者都明显地增加试样高温拉伸时沿晶间断裂的倾向。
短句来源
     Our results show that no interference from the other elements or impurities were detected, and all isotopic abundances were in good agreement with published values, in the case of Pb. It is suggested that the capability for lead isotopic ratio measurements is in excess of 100:1 with suitable experimental conditions.
     采用1+1共振电离飞行时间质谱测定了铅和铋,结果表明本实验系统可以测定同位素比为100:l的元素,并显示出很好的选择性.
短句来源
     Hydrogen evolution reactions on lead (Pb) and bismuth (Bi) electrodes were studied by the measurement of hydrogen evolution volume, cathodic polarization curves and alternative current impedance spectrum.
     采用气体收集实验、阴极极化曲线法及电化学阻抗法,研究了铅和铋电极在硫酸溶液中的析氢反应。 相同电位下,铋电极上收集的氢气体积大于铅电极上的。
短句来源
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  相似匹配句对
     LEAD
    
短句来源
     0.1%Bi,In,Pb;
     0.1%的、铟、;
短句来源
     High Quality Piezoelectricity Cevamics of Non-Pb and Non-Bi
     无高性能压电陶瓷
短句来源
     POSITION AND EFFECT OF THE DOPED Pb IN Bi-BASE 110K SUPERCONDUCTOR
     系110K超导相中的位置作用
短句来源
     Determination of trace Pb and Bi in pure copper by graphite furnace atomic absorption spectrophotometry(GFAAS)
     石墨炉原子吸收光谱法测定纯铜中的痕量
短句来源
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  lead and bismuth
Experimental Investigation of the Surface Tension of Liquid Lead and Bismuth in the Vicinity of the Melting Point
      
The purity of starting lead and bismuth is no lower than 99.99 wt % for each of these metals.
      
Valence States of Lead and Bismuth Atoms in the High-Temperature Superconductor BaPb1-xBixO3
      
Parameters of the X-ray photoelectron spectra of the valence bands do not contradict the conclusion on heterovalent states of lead and bismuth atoms in BaPb0.8Bi0.2O3.
      
Lead and bismuth clusters are found to be highly reactive in cracking the strongly bound Sb4-tetrahedron.
      
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An investigation has been carried out in order to determine the effect of the residual elements lead and bismuth on the hot ductility of powder austenitic stainless steel 316L.The steel samples contained different amounts of Pb (from 14 to 81 ppm) or Bi (from 6 to 25 ppm) and were produced by the following powder metallurgical (P/M) route:powder production by the rotary electrode process,powder encapsulation,cold isostatic pressing, hot isostatic pressing and hot extrusion. Hot ductility was studied by means...

An investigation has been carried out in order to determine the effect of the residual elements lead and bismuth on the hot ductility of powder austenitic stainless steel 316L.The steel samples contained different amounts of Pb (from 14 to 81 ppm) or Bi (from 6 to 25 ppm) and were produced by the following powder metallurgical (P/M) route:powder production by the rotary electrode process,powder encapsulation,cold isostatic pressing, hot isostatic pressing and hot extrusion. Hot ductility was studied by means of hot tensile testing.It was found that the negative effects of Pb and Bi on the hot ductility of P/M- steels were quite similar to those observed in the corresponding convention- ally produced steels.A content of more than 20 ppm Pb or 6 ppm Bi in the steels resulted in a pronounced decrease in hot ductility.Both Pb and Bi increased the tendency to intercrystalline fracture during hot tensile testing.

本文研究了微量杂质铅和铋对粉末冶金奥氏体不锈钢(AISI 316L)热塑性的影响。发现铅和铋对粉末不锈钢的有害效果与对相应的传统不锈钢的效果相类似。当铅含量超过20ppm 或铋含量超过6ppm 后,钢的热塑性就明显地降低。铅和铋两者都明显地增加试样高温拉伸时沿晶间断裂的倾向。

The article aims at looking for a way of treating Pb-Bi alloy retrieved from converter dust in a certain smelter, and trying to discover a brief and effective new technlogy with which Bi and other valuable metals can be seperated and abstracted from the alloy.

本课题是针对某冶炼厂以处理转炉烟尘中回收的铅—铋合金试料,探觅一条简捷有效分离提取铋及其它有价金属的新工艺.采用的方法为真空蒸镏法.试验确认:1)试验结果与理论计算基本吻合;2)某厂铅—铋合金直接真空蒸镏分离是可能的;3)真空蒸镏法分离铅和铋,以处理合Bi%>40%的合金为宜;对含Bi%<10%的合金最好先经过富集处理使含Bi%>40%后,采用连续作业的多级真空蒸镏分离,可一举得到粗铋和粗铅,再分别进行真空蒸镏精炼就可得精鉍和精铅了.

NaCl, KBr and KI were found to produce strong background in the determination of Fe,Cu,Pb and Bi in graphite furnace atomic absorption spectrometry. Increasing the charring temperature and time the interference could be removed or reduced. In the determination of Pb and Bi the platinum or palladium could be used as the matrix modifier,but platinum gave a better efficiency.

氯化钠、溴化钾、碘化钾在石墨炉原子吸收光谱法测定铁、铜、铅、铋时产生强的背景。提高灰化温度和时间能消除或降低此干扰。铅和铋的测定能用铂或钯作基体改进剂,但是铂的效果更好。

 
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