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电弧光源
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  arc source
     The excitation characteristics of a local temperature equilibrium (LTE) alternating current arc source and a non-LTE N_2/Ar ICP and Ar ICP were compared by measuring the excitation temperatures and intensity ratios of ionic/atomic line. The results demonstrate that the metastable argon and Penning ionization play a particular role in the excitation mechanism of ICP.
     本文测量并比较了遵守局部热平衡的交流电弧光源和非热平衡的Ar ICP与N_2/Ar ICP光源的激发温度、多元素离子线/原子线的强度比,实验指出在ICP光源中,(激发电位+电离电位)与亚稳态氩原子的能量相近的离子谱线发射显著增强,表明亚稳态氩和潘宁电离在该光源的激发过程中所起的特殊作用。
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  “电弧光源”译为未确定词的双语例句
     Application and Development of Spark/Electric Arc Light Source Photoelectric Direet reading Spectrometry in iron and Steel Analysis
     火花/电弧光源光电直读光谱在钢铁分析中的应用与进展
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     The channel widths of both the ICP and the ICP-arc source, and the gas temperature in channel are determined.
     测定了ICP和ICP-电弧光源中通道的宽度和气体的温度。
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     In this study an E S method has heen pro-posed,in which KH_2PO_4 is used as the carrier,In and Pd as the internal standards,flat head graphite electrode as the working electrode . and 6A alternating current are as the lightsource. The solution residue technique and amodel WSP-1 Spectrometer were used.
     本文以KH_2PO_4为载体,In和Pd作内标,采用平头石墨电极,交流电弧光源和溶液干楂法,建立了一个发射光谱法在几十毫克大气飘尘样品中同时测定Be、V、Cr、Ni、Fe、Cu、Sn、Ti、Pb、Mn、Cd、Zn和Co等13个元素。
短句来源
     Through changing the preignition time and the excitation time of sparkle light source, electric arc light source and trace analyzing light source, the method shortening excitation period for analysis of mid of low alloy steel is studied Through experiment the analyzing period is shortened from 34s to 23s This method is very good from the results of exactitude experiment, stability experiment and comparison experiment We have obtained much economical benefit through using this method
     研究了通过改变预燃时间 ,火花光源、电弧光源、痕量分析光源的激发时间来缩短激发周期进行中低合金钢分析的方法 ,通过实验将分析周期从 3 4s缩短到 2 3 s,从精密度实验、稳定性实验、结果对照来看该方法是切实可行的 ,并取得了很好的经济效益。
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  相似匹配句对
     Study on Excitation Source of the Flame-arc Atomic Emission Spectrometry
     火焰-电弧原子发射光谱光源研究
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     Overhauling Methods of Light Breakdowns of Electric Arc Lamps
     电弧放电灯系列光源故障的检修方法
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     Voltage Flicker of Arc Furuates(1)
     电弧炉的电压闪变
短句来源
     High Speed Rotating Arc Sensor
     高速旋转电弧传感器
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     Duoplasmatron as a VUV Source
     真空紫外双等离子管光源
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  arc source
The calculations are per-formed in application to the described new experiments in flow past a model and in measuring the drag in a hypersonic shock tunnel at Mach 10 in the presence or absence of a powerful arc source of energy.
      
The calculations are performed in application to the described new experiments in flow past a model and in measuring the drag in a hypersonic shock tunnel at Mach 10 in the presence or absence of a powerful arc source of energy.
      
Generation of Gas Discharge Plasma by an Arc Source with a Cold Hollow Cathode
      
New spectrometric method for the determination of trace elements in petroleum by double plasma arc source in a graphite tube
      
Glow discharge atomic emission spectroscopy (GD-OES) and the classical spectrographic method with a dc arc source (DC-ARC OES) have been applied to the direct analysis of SiC powders.
      
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In the spectrochemical analysis of high speed steels with a small current activated a.c. arc (after Aбрамсон), the results of analysis were found to be affected by different previous heat-treatments given to the steel samples. To study this effect we selected 10 chromium steel samples of different carbon content. Spectrochemical analysis of these samples under different procedures of heat treatment shows that with an a.c. arc (5 amp.) the results of analysis of Cr for annealed and for hardened samples of the...

In the spectrochemical analysis of high speed steels with a small current activated a.c. arc (after Aбрамсон), the results of analysis were found to be affected by different previous heat-treatments given to the steel samples. To study this effect we selected 10 chromium steel samples of different carbon content. Spectrochemical analysis of these samples under different procedures of heat treatment shows that with an a.c. arc (5 amp.) the results of analysis of Cr for annealed and for hardened samples of the same steel are different and the difference increases with the increase of carbon content. We are inclined to think that in a low energy light source, the evaporation and the excitation of the alloying elements vary according to the existing form of carbon and this directly affects the results of spectrochemical analysis. The magnitude of this effect is different for different alloying elements, it is considerable in the case of Cr but is inappreciable in the case of Mn and Si.

我们用爱氏光源(低电流交流电弧)作高速钢的光谱分析时,发现样品的组织结构对于分析结果有影响。为了对这个现象得到进一步的了解,我们选择了10种含碳量不同的铬钢进行热处理试验和光谱分析。一系列实验的结果指出,用小电流(5安)电弧光源时,铬的光谱分析结果由于试样是退火组织或淬火组织而有差别,这个差别又随着钢中含碳量的增加而增加。我们认为,这种影响是由于碳在试样中存在状态的不同所引起的。在低功率光源中,这种不同使合金元素被蒸发和被激发的情况有所差别,因而就影响了光谱分析的结果。这种影响由于合金元素之不同而有程度上的不同,对铬的影响很显著,对锰和矽的影响则很小。此外,所选择的分析线对是弧线还是火花线,对于这种组织结构的效应也有显著的影响。 曾经进行了一些消除组织结构影响的实验。发现在应用低功率光源时,增加预燃时间并不能消除这个效应。用火花光源或大电流(8安)电弧光源时,这种影响大为减小。

In order to improve the accuracy of spectrochemical analysis of high speed

为了提高高速钢光谱分析的准确度,在本文中比较系统地研究了激发条件和样品的组织结构对于准确度的影响。关于激发条件方面,比较了用各种不向光源所得到的单次分析的误差,指出火花光源的分析准确度一般比电弧光源的高,但是用各种光源所得的准确度与所选用的分析线对有密切的关系。考察了电弧电流对于定标曲线的影响,首次观察到在定标曲线斜度b对于电流的关系曲线上当电流约为1安培时有一个最大值出现,对于出现最大值的原因提出了初步的看法。用简单火花光源考察了极距对于定标曲线斜度b的影响,指出增加极距使铬和钒的定标曲线斜度b降低,但是对于钨的却没有显著的影响。关于组织结构方面,用自己制备的高速钢标准样品制定了具有不同的组织结构(铸造的、热锻的和退火的组织)的样品的定标曲线。用电弧作光源时,观察到组织结构的不同使定标曲线发生平移,用火花光源时这种现象并不显著。根据我们以前关于这方面所得的结果,对于定标曲线的平移现象提出了定性的解释。

Following the development of the copper cup-electrode solution method for the spectrogra-phic analysis of open-hearth slags,a series of experiments was carried out to study the volatili-zation process in such a spectral light source.The correlation of the different volatilizationcurves obtained with different experimental conditions revealed that the volatilization processmay be considered as of two stages.The first stage corresponds to the appearence of the firstpeak on the volatilization curve,where no fractional...

Following the development of the copper cup-electrode solution method for the spectrogra-phic analysis of open-hearth slags,a series of experiments was carried out to study the volatili-zation process in such a spectral light source.The correlation of the different volatilizationcurves obtained with different experimental conditions revealed that the volatilization processmay be considered as of two stages.The first stage corresponds to the appearence of the firstpeak on the volatilization curve,where no fractional distillation was observed.It means thatduring this stage,volatilization of the substances into the radiating vapor comes directly fromthe surface of the solution.The second stage corresponds to the appearance of a second peakand the shape and position of this peak is very sensitive to the slight variation of experimentalconditions,which also vary differently for various elements.This tendency toward fractionaldistillation may be directly correlated with the different electrode potentials of the elements.Thus,we regard that the volatilization of the elements,during this stage,into the arc columnis essentially from the inner electrode of the cup.Because of these characteristics of thevolatilization process cited above,substances that do not dissolve in the sample solution can alsoenter into the radiating vapor especially during the first stage from the turbulent solution.Aset of experimental data indicates that the precision of spectral analysis and the position of thecalibration curves are not obviously affected by the fact that open-hearth slags do not alwayscompletely dissolve in an acid solution.The effect of the solvent(HNO_3 and HCl)on the slope of the calibration curves and theinfluence of the anions on the density of the spectral lines of the different analyzing elementswere also briefly studied.Taking into account of the results obtained from the study of the volatilization process of sucha spectral source,we were able to eliminate shifts of the calibration curves in routine analysisof open-hearth slags.This was accomplished by strict control of the height of the surfaceof the solution inside the cup-electrode and careful workmanship of the lower inner electrode.The relative arithmetic mean error of nine independent analyses for all the elements analyzed inslags was within 4%.Preliminary experiments show that this method is also applicable tospectrographic analysis of blast-furnace slags and magnesia.

根据杯形铜电极溶液法用于平炉渣光谱分析所得的初步结果,进行了一系列有关杯形电极溶液电弧光源中燃烧过程的系统试验。在不同情形下测定了溶液中各元素的燃烧曲线,看到曲线上先后有两个高峯出现,因而认为光源中的燃烧过程有两阶段,物质在这两燃烧阶段中进入放电区的方式不同。第一阶段相当于第一高峯出现的期间,在这时并没有分馏现象,这表示溶液中的物质主要是经过溶液的翻腾作用而直接从液面进入放电区的。燃烧过程的后一阶段相当于曲线上的第二高峯的部分,这个峯的形状和位置对于不同元素和不同实验条件很灵敏,有分馏现象出现。根据对于各种分析元素的分解电压,可以认为,溶液中的物质在这个燃烧阶段主要是通过电极心而进入弧柱的。在平炉渣的实际分析中,严格地控制杯中液面的高低和铜电极心的加工规格,所得到各元素的九次独立分析误差都在4%以内。

 
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