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准金属元素
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  “准金属元素”译为未确定词的双语例句
     Heavy metal mercury and metalloid arsenic are listed toxic elements in environmental science.
     重金属元素汞和准金属元素砷在环境科学中均在有毒重金属之列。
短句来源
     The Arsenic belongs to toxic semi-metal element.
     砷是一种具有毒性的准金属元素.
短句来源
     In this study, the connections between 24 metals (Pb, Cu, Zn, Co, Cd, Sb, As, Fe, Ni, Cr, Ag, Sc, Ba, Hg, Be, Bi, Mn, Al, Ti, Se, Ga, Li, V, and Mo) and five magnetic parameters (χ, χfd, SOFT, SIRM, and χARM) in Xuzhou urban topsoil have been explored and the magnetic diagnosis models for some of the metals have also been established.
     详细探讨了徐州城市表层土壤中24种金属元素(As为准金属元素;Pb、Cu、Zn、Co、Cd、Sb、As、Fe、Ni、Cr、Ag、Sc、Ba、Hg、Be、Bi、Mn、Al、Ti、Se、Ga、Li、V、Mo)与5个磁学参数(χ、χfd、SOFT、SIRM、χARM)的相关关系,并且建立了磁学诊断模型。
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  相似匹配句对
     The Arsenic belongs to toxic semi-metal element.
     砷是一种具有毒性的准金属元素.
短句来源
     % Cu element were doped in the KNNT.
     %的Cu元素
短句来源
     The Fifth Element
     第五元素
短句来源
     Heavy metal mercury and metalloid arsenic are listed toxic elements in environmental science.
     重金属元素汞和准金属元素砷在环境科学中均在有毒重金属之列。
短句来源
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  metalloid element
Arsenic, a metalloid element known for its toxicity and carcinogenicity, is soluble in water and occurs naturally in many minerals.
      
It consists of a metal or metalloid element surrounded by various ligands.
      
The precursors used in sol-gel processing consist of a metal or metalloid element surrounded by various reactive ligands.
      


The Arsenic belongs to toxic semi-metal element. In this paper the charac-tristscs of content and forms of soil Arsenic in different geo-environmental conditions are discussed based on the analysis of six typical soil samples. And so the preliminary countermea-sure to prevent crop from Arsenic harm are put forward

砷是一种具有毒性的准金属元素.本文根据六种典型土壤中砷的形态和含量的测定结果,分析讨论了不同地理环境条件下土壤中砷的含量和形态特征.并就砷的毒害与防治对策作了初步的探讨.

A new analytical system has been developed for the determination of total gaseous selenium content in the atmosphere by honeycomb denuder collection followed by measurement with differential pulse cathodic stripping voltammetry (DPCSV). The collection efficiency of 2%HNO 3/2% glycerine mixed solution coated in honeycomb denuder for gaseous selenium was 99.1% at the flow rate of 1 L/min for 3 h. Compared to annular denuder, the collection efficiency and capacity of honeycomb denuder were higher than annular...

A new analytical system has been developed for the determination of total gaseous selenium content in the atmosphere by honeycomb denuder collection followed by measurement with differential pulse cathodic stripping voltammetry (DPCSV). The collection efficiency of 2%HNO 3/2% glycerine mixed solution coated in honeycomb denuder for gaseous selenium was 99.1% at the flow rate of 1 L/min for 3 h. Compared to annular denuder, the collection efficiency and capacity of honeycomb denuder were higher than annular denuder at the same flow rate of 1 L/min for the sampling time of 3 h. Excellent linearity was maintained up to Se concentration of 40 μg/L. A precision of 1.3% RSD ( n =5) for 5 ng Se was obtained the limit of detection (3σ) and the limit of quantitative determination were estimated to be 0.96 ng/m 3 and 3.19 ng/m 3, respectively. The total content of gaseous selenium in the atmosphere of our laboratories was 3.2~4.4 ng/m 3. The relative deviation was <±8.3% when compared with the conventional molecular fluorescence analytical (MFA) method. The average recovery of selenium in the three selenium standards using our analytical system reached 99%. The analytical system is accurate, sensitive, simple, it can be used for in situ analysis, and will have a broad prospects.

建立了一种新型的用于检测大气中气态硒的分析系统 ,即蜂窝状扩散管 (HD)采集 微分脉冲阴极溶出伏安法 (DPCSV)系统。研究表明 :2 %HNO3 2 %甘油对气态硒的收集效率为 99 1%和环形扩散管 (AD)相比 ,HD的收集效率和收集容量都更大。硒浓度升至 4 0 μg L时分析校准曲线仍然呈良好的线性。 5ng硒的RSD(n =5 )为 1 2 6 % ,检出限 (3σ)与测定限分别是 0 .96ng m3和 3.19ng m3。测定三个硒标准的平均回收率为98 8%。与国家标准分子荧光法比较 ,相对误差小于± 8.3%。测得的实验室大气中气态硒系列总量为 3.2~4 .4ng m3。本分析系统准确灵敏、重现性好、操作简单、可适用于户外现场操作 ,经试验还可用于大气中其它气态金属 (或准金属 )元素系列的采集与分析 ,有着广阔的应用前景

Contamination of urban topsoils with metals is an issue all urban regions have to deal with. In recent years, magnetic measurements have been increasingly used as a proxy for the metal content in soils influenced by industrial or traffic emissions. In order to validate this method, a more detailed study of links between magnetic parameters characterizing the magnetic minerals and concentrations of metals is necessary. In this study, the connections between 24 metals (Pb, Cu, Zn, Co, Cd, Sb, As, Fe, Ni, Cr, Ag,...

Contamination of urban topsoils with metals is an issue all urban regions have to deal with. In recent years, magnetic measurements have been increasingly used as a proxy for the metal content in soils influenced by industrial or traffic emissions. In order to validate this method, a more detailed study of links between magnetic parameters characterizing the magnetic minerals and concentrations of metals is necessary. In this study, the connections between 24 metals (Pb, Cu, Zn, Co, Cd, Sb, As, Fe, Ni, Cr, Ag, Sc, Ba, Hg, Be, Bi, Mn, Al, Ti, Se, Ga, Li, V, and Mo) and five magnetic parameters (χ, χfd, SOFT, SIRM, and χARM) in Xuzhou urban topsoil have been explored and the magnetic diagnosis models for some of the metals have also been established. Our results show some metal contents could be initially estimated quantitatively by means of magnetic measurements for the Xuzhou urban topsoil.

城市表层土壤中金属元素的污染必须加以控制。近来,磁学监测正逐步作为代用指标,监测由某些工业或交通污染的土壤中金属元素含量。为了进一步确认这种方法的有效性,研究金属元素的含量与磁学参数之间的关系是非常必要的。详细探讨了徐州城市表层土壤中24种金属元素(As为准金属元素;Pb、Cu、Zn、Co、Cd、Sb、As、Fe、Ni、Cr、Ag、Sc、Ba、Hg、Be、Bi、Mn、Al、Ti、Se、Ga、Li、V、Mo)与5个磁学参数(χ、χfd、SOFT、SIRM、χARM)的相关关系,并且建立了磁学诊断模型。结果表明,利用磁学监测方法能够初步定量地评估城市表层土壤中部分金属元素的含量。

 
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