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     The microstructure of Au-Mi-Fe-Cr-In-Zr alloy has been studied by means of EDS and TEM.
     利用X射线能谱(EDS)和透射电子显微术(TEM)等手段研究了Au-Ni-Fe-Cr-In-Zr合金的显微组织。
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     The effect of long term aging at 950℃ for 500, 1000, 1500 and 2000 h on the microstructure and mechanical properties of alloy IC6 was investigated.
     利用扫描电镜(SEM)、能谱(EDS)、透射电镜(TEM)等分析手段研究了IC6合金950℃长期时效500,1000,1500,2000h后的显微组织和力学性能.
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     SEM,EDS and XED analysis show that these high melting point phases are (La,Ce) 2 O 3 and Ti(C,N).
     经扫描电镜( S E M) 、能谱( E D S) 和 X 射线衍射分析( X R D) 表明,高熔点相为稀土氧化物( La , Ce)2( O, S)3 和碳、氮化物 Ti( C, N) 。
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     The morphology and compositions of samples were characterized by XRD TEM, EDS.
     用X射线衍射(XRD)、透射电镜(TEM)、能谱(EDS)对样品的形貌、组成进行了分析;
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     The techniques including X-ray diffraction(XRD),energy-dispersive X-ray spectroscopy(EDS)and high resolution transmission electron microscopy(HRTEM) have been used tocharacterize the crystal structures and the chemical composition of the composite.
     应用X射线衍射(XRD)、X射线能量散射(EDS)及高分辨电子显微术(HRTEM)等技术手段分析研究了该(T_i,Zr)N复合陶瓷的晶体结构和化学成份。
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     ③EDS control group (EDS): the non scalded rats with EDS (20 mg/rat);
     药物对照组 (EDS) ;
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     Study on Gallstones with SEM and EDS
     胆结石的SEM和EDS研究
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     Studies on the Hemagglutination Property of isolate of Chicken Egg Drop Syndrome Virus(EDS-BH_(91))
     EDS-BH_91毒株血凝特性的研究
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     A STUDY ON TECHNOLOGY PROCESS IN MASSPRODUCING THE OIL-EMULSION VACCINE FOR EDS-76
     EDS_76灭活油乳剂疫苗的乳化工艺研究
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Then, an observation of scanning electron microscopy (SEM) and an electronic data systems (EDS) analysis of slag were performed respectively.
      
The catalysts were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS).
      
The surface morphologies and characteristics of the MIP were determined by BET, scanning electron microscopy (SEM), FTIR and energy dispersive X-ray spectrometer (EDS).
      
There were 17.1 wt-% of iron and 11.1 wt-% of chromium found on the coke surface detected by energy dispersive spectroscopy (EDS) which suggests carburetionon alloy.
      
Undecalcified cross-sections of implant were performed to observe bone-implant by scanning electron microscopy (SEM) and energy dispersive spectromicroscopy (EDS).
      
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In general, the quantitative electron probe microanalysis is based on comparisons with standard samples. In this article, a method of the quantitative analysis of binary alloys without reference to standard samples is introduced. After simultaneous measurements of the ratios of the Kα photons of two elements in the binary alloys (Cu-Ga, GaAs) in SEM-EDS equipment, the constituents of the binary alloys are calculated from a simplified formula for the energy loss of the incident electrons, the X-ray excitation...

In general, the quantitative electron probe microanalysis is based on comparisons with standard samples. In this article, a method of the quantitative analysis of binary alloys without reference to standard samples is introduced. After simultaneous measurements of the ratios of the Kα photons of two elements in the binary alloys (Cu-Ga, GaAs) in SEM-EDS equipment, the constituents of the binary alloys are calculated from a simplified formula for the energy loss of the incident electrons, the X-ray excitation cross-section and the secondary fluorescence. When the overvol-tage of the incident electrons is kept in the range 2-3, the calculated results show good agreement with the actual constituents. The "instrument sensitivity" of the characteristic X-ray of the pure elements determined in the literature is calculated and discussed by using this simplified model.

一般用电子探针对合金成份进行定量分析时都用标样进行对比。本文提出了一个不用标样的二元合金成份的定量分析方法。利用扫描电子显微镜-X光能谱分析装置同时测定二元合金(Cu-Ga,GaAs)中二元素的K_a光子数比值后,由简化的入射电子能量损失公式和X光激发截面公式并考虑了二次荧光效应后,可计算出二元合金的成份。当入射电子的过电压保持在2—3时,得到和实际成份一致的结果。利用上述简化模型对文献中不同纯元素特征X光的“仪器灵敏度”进行了计算和讨论。

The strength of lime-quartz products cured in an autoclave will be led to de- crease due to the formation of hydroxyl ellestadite(hereinafter abbreviated as HXEL phase) Factors which may have inflences on forming EXEL phase are of multiplicity, such as fineness of quarty, CaO/SiO_2 molar ratio, of the mixture, time and temperature for hydrothermal treatment and amount of gypsum used in the mixture, etc. But it is considered that the most essential factor is the relative amount of C_a~(2+), SiO_4~(-4), and SO_4~(-2)...

The strength of lime-quartz products cured in an autoclave will be led to de- crease due to the formation of hydroxyl ellestadite(hereinafter abbreviated as HXEL phase) Factors which may have inflences on forming EXEL phase are of multiplicity, such as fineness of quarty, CaO/SiO_2 molar ratio, of the mixture, time and temperature for hydrothermal treatment and amount of gypsum used in the mixture, etc. But it is considered that the most essential factor is the relative amount of C_a~(2+), SiO_4~(-4), and SO_4~(-2) content in the solution, when the amount of gypsum is enough, the relative amount of CaO and SiO_2 content in the solution will be mainly responsible for it. The average CaO/SiO_2 molar ratio of hydrates formed has been taken as the index for determining the formation and stability of HXEL. When the ratio exce- eds 1, HXEL phase can be formed and stablized. There are two causes for the formation of HXEL phase to bring about decrea- se of the strength of products: (1) short of cementation in HXEL phase itself and (2) the reactivity of quartz decreases enormously with the formation of HXEL phase.

在掺石膏的蒸压灰砂制品中,由于HXEL相(Hydroxyl Ellestadite,硅磷灰石)的生成,会导致制品强度的降低,影响HXEL相形成的因素是多方面的,但笔者认为最本质的原因是液相中Ca~(+2)SiO_4~(-4)SO_4~(-2)三者的相对含量,当石膏含量足够时,主要由液相中CaO和SiO_2的相对含量所决定。我们采用了已生成水化物的平均碱度(C/S)作为判断HXEL相能否生成和稳定的指标。当这个碱度大于1时,HXEL相是能够生成和稳定存在的。 HXEL相的生成致使制品强度下降的原因有二,一是HXEL相本身缺乏胶凝性,二是HXEL相的生成大大降低了石英的反应率。

The influence of impregnation conditions on the active components distribution of hydrodesulfurization catalyst Mo-Co-Ni/γ-Al2O3 has been studied by electron microprobe method. The penetration depth of impregnation solution and the adsorption of solute on pore wall are main factors affecting the active components distribution. By varying the volume and concentration of impregnation solution, the active components distribution and atomic ratio distribution of active components could be controlled simultaneously....

The influence of impregnation conditions on the active components distribution of hydrodesulfurization catalyst Mo-Co-Ni/γ-Al2O3 has been studied by electron microprobe method. The penetration depth of impregnation solution and the adsorption of solute on pore wall are main factors affecting the active components distribution. By varying the volume and concentration of impregnation solution, the active components distribution and atomic ratio distribution of active components could be controlled simultaneously. Two catalyst models with even atomic ratio distribution of active components but different in their active components distribution were obtained, active components of one catalyst are well-distributed, and those of the other are concentrated on the outer part of the pellet. In the case impregnated with excess impregnation solution, the distribution of Co and Ni on γ-Al2O3 is obviously affected by the impregnation sequence of Mo and Co, Ni.The electron microprobe used in this work, consists of JEOL' s JSM-35C scanning electron microscope with DDS X-ray wavelength dispersive spectrometer and combined with EDAX PV 9100/60 X-ray energy dispersive spectrometer (EDS). The analytical capability softwares of EDS are used in quantitative analysis, and the results are calculated with its on line computer.

本文用电子探针分析法研究了制备Mo—Co—Ni/γ-Al_2O_3加氢脱硫催化剂的浸渍条件对Co,Ni,Mo在γ-Al_2O_3上分布的影响。观察了浸渍液浸透程度和孔壁对溶质的吸附作用。控制浸渍液的用量和浓度,可在γ-Al_2O_3粒子上同时调节活性组份含量的分布和活性组份间原子比的分布,得到了两种活性组份原子比比较均匀,而活性组份含量分布不同的催化剂模型。以过量浸渍液浸渍时,观察到组份Mo和组份Co,Ni间浸渍的次序对Co,Ni在γ-Al_2O_3上的分布有明显影响。

 
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