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powder pattern     
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  粉末谱
     The computer simulation method of the solid powder pattern in the presence of anisotropic chemical shift effect and nuclear electric quadrupole interaction is presented. The computer program was designed for the powder pattern of the central transition of nuclei with half-integral spin. The "noise" and error in the simulation spectra as well as the spectra simulation procedure were analysed.
     文本介绍了存在各向异性化学位移效应和电四极矩相互作用时,自旋为半整数核的固体NMR中心跃迁粉末谱的计算机拟合方法,讨论了谱拟合步骤和模拟谱中的“噪声”和误差。
短句来源
     The general formulation is deduced, by which the simulation program for VASS NMR powder pattern is set up.
     推导出普适公式,并据此建立VASS NMR粉末谱型的拟谱程序。
短句来源
  粉末衍射
     The research state of heteropoly compounds containing halogen elements, vanadium and cobaltmolybdenum were summarized. Part two: A new simple method of producing NH_4V_3O_8 and (NH_4)_2V_6O_(16) has been reported in this paper. This two compounds are characterized by element analysis, infrared spectrum, inductively coupled plasma atomic emission spectrum and X-ray powder pattern at room temperature.
     2.介绍了一种简单的合成NH_4V_3O_8和(NH_4)_2V_6O_(16)的新方法,并对所得到的化合物进行了一系列的分析与表征,如:红外光谱(IR),元素分析,原子发射光谱(ICP),X-粉末衍射(XRD),热分析(TG-DTA)等。
短句来源
     None of the lines could be fitted to the uranium oxides and the other raw materials structure. The X-ray powder pattern for this new compound is different from the K2NiF4-type layered perovskite and YBa_2Cu_3O_(9-x) structure.
     这种四元氧化物体系的粉末衍射谱与已有报道的La-Ba-Cu-O体系的钙钛矿结构或K_2NiF_4结构以及Y-Ba_2-Cu_3-O_(9-x)体系的衍射谱都不相同。
短句来源
     Part five: A new Anderson-type compound has been synthesised and characterized by infrared spectrum, UV, element analysis, ICP, X-ray powder pattern, thermal study (TG), et al.
     ,并对其进行了一系列的分析与表征,如:红外光谱(IR),紫外光谱(UV),元素分析,原子发射光谱(ICP),热重分析(TG),X-粉末衍射等。
短句来源
     It is an alternate process of correcting cell dimensions and extension to indexing from low-angle areas to high-angle areas in an X-ray diffraction powder pattern based on a reasonable selection fitting of data. As discriminations, both △Q and |1-ρ| has been used to write the computer programme in ALGOL 60 language,The calculated results prove that the method is fairly applicable.
     根据抛弃法数据处理原理,从粉末衍射图谱的低角区到高角区不断地重复精化晶胞参数与扩大指标化两步骤,利用△Q及|1-ρ|作为判别函数,用ALGOL 60语言编写了计算机程序,计算结果表明这方法是可行的。
短句来源
     Their composition and properties have been explored with the aid of elemental analysis, TGA, DTA, IR, UV, NMR, x-ray powder pattern, magnetic susceptiblity and electrolytic conductivity. And what is more, the reasons for the coordination number of cobalt (Ⅱ) in tri(1-methylimidazole)cobalt(Ⅱ) smaller than that in the another Coordination Compounds of cobalt(Ⅱ) have also been discussed.
     通过元素分析、热重、差热分析、红外光谱、紫外光谱、核磁共振谱、x射线粉末衍射图、磁化率和电导测定等研究了这两配合物的组成和性质,探讨了1-甲基咪唑钴(Ⅱ)配合物中Co(Ⅱ)配位不饱和的原因。
短句来源
  “powder pattern”译为未确定词的双语例句
     The strongest lines in the X-ray powder pattern of the beudanite in the Debao deposite district are 5.90(9),3.65(5),3.07(10),2.29(8),1.976(6).
     砷铅铁矾(德保)的粉晶X射线分析主要衍射强线有:5.90(9),3.65(5),3.07(10),2.29(8),1.976(6)。
短句来源
     The strongest lines in X-ray powder pattern are(in)6.30(10), 5.40(7), 4.75(8), 3.49(9), 3.165(5), 2.240(5). 2.130(5), 1:842(8), and 1.587(5)。
     X射线粉晶分析主要谱线(); 6.30(10),5.40(7),4.75(8),3.49(9),3.165(5),2.240(5),2.130(5),1.842(8),1.587(5)。
短句来源
     The strongest lines in the X-ray powder pattern are 8.10 (9), 7.20 (10), 3.51(8), 3.15(9).
     X射线粉晶分析主要强线为8.10(9),7.20(10),3.51(8),3.15(9)。
短句来源
     Nine strongest lines hkl, d, I in the X-ray diffraction powder pattern are: 210, 2. 86(70) ;
     9条最强X射线粉晶衍射线hkl、d、I为210,2.86(70);
短句来源
     Eleven strongest llnes hkl,d,I in the X-ray diffraction powder pattern are: 210, 2. 89(70);
     11条马营矿最强X射线衍射线hkl,d、I为:210,2.89(70);
短句来源
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  powder pattern
1.Tetrammonium platinum pertechnetate has been synthesized.2.Its powder pattern has been indexed in the orthorhombic system and the lattice parameters have been measured.
      
There was a gradual loss of symmetry in the powder pattern as the amount of cholesterol was decreased and the amount of ceramides (or DPPC) was increased concomitantly.
      
The XRD measurements revealed that the typical HAP powder pattern was obtained.
      
The structural analyses were carried out using the obtained powder pattern X-ray data.
      
A single crystal in the form of a thin rectangular platelet up to 6×4 mm2 was obtained and was identified by X-ray powder pattern and by scanning electron microscopy (SEM).
      
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The magnetic properties and Ferromagnetic resonance of the yttrium-lanthanum iron garnet system Fe5O12 were investigated at the compositions corresponding to x=0, 0.05, 0.10, 0.20, 0.30, 0.50, 0.75 and 1.00. The single-phase region with garnet structure determined by the X-ray powder pattern analysis and metallographic observations extends to about 0.10

The magnetic properties and Ferromagnetic resonance of the yttrium-lanthanum iron garnet system Fe5O12 were investigated at the compositions corresponding to x=0, 0.05, 0.10, 0.20, 0.30, 0.50, 0.75 and 1.00. The single-phase region with garnet structure determined by the X-ray powder pattern analysis and metallographic observations extends to about 0.10

本文对钇-镧石榴石型铁氧体系Y_(3(1-x))La_(3x)Fe_5O_(12)(其中x=0,0.05,0.10,O.20,0.30,0.50,0.75和1.00)的磁性和铁磁共振进行了研究。由X射线粉末照相分析和金相观察确定了石榴石转构的单相区域。测量了饱和磁矩б_s、起始磁导率μ_0、矫顽力H_c及有效g因子geff和共振线宽△H(3970和9160兆赫)与La含量x的关系。由磁性和铁磁共振的测量结果表明单相区城要比由X射线分析和金相观察的结果更窄一些。讨论了不同成分的б_s的变化,μ_O与磁化机构的关系。由geff与频率的关系计算出内场H_i和材料的内禀g因子。从磁的不均匀性的观点解释了实验上观测到的△H、H_i和H_C在一定成分范围内与x的指数式关系。

The phase equilibrium relationships in the system La_2O_3-BeO were examined by quenching method together with microscopic and X-ray powder techniques. Two binary compounds: La_2O_3·2BeO and 3La_2O_3·2BeO have been identified. The latter is able to take up excess BeO in solid solution, the homogeneous region of which extends over the composition range of 3La_2o_3·2BeO-La_2O_3·BeO. The melting point of La_2O_3.2BeO was determined to be 1363±3℃, whereas 3La_2O_3·2BeO melts incongurently at 1510±10℃. Three...

The phase equilibrium relationships in the system La_2O_3-BeO were examined by quenching method together with microscopic and X-ray powder techniques. Two binary compounds: La_2O_3·2BeO and 3La_2O_3·2BeO have been identified. The latter is able to take up excess BeO in solid solution, the homogeneous region of which extends over the composition range of 3La_2o_3·2BeO-La_2O_3·BeO. The melting point of La_2O_3.2BeO was determined to be 1363±3℃, whereas 3La_2O_3·2BeO melts incongurently at 1510±10℃. Three invariant points have been located at 1356±2℃, 40.8 mole% LaO_(1.5); 1362±4℃, 51 mole% LaO_(1.5); and 1510±10℃, 66 mole% LaO_(1.5); with the coexistence of BeO-La_2O_3·2BeO-liquid; La_2O_3·2BeO-3La_2O_3·2BeO_(s.s)-liquid;and 3La_2O_3·2BeO-La_2O_3-liquid respectively.Indexing of the X-ray powder patterns reveals that La_2O_3·2BeO and 3La_2O_3·2BeO belong to orthorhombic and hexagonal symmetry respectively. Their lattice parame-ters and crystallo-optic properties are given.The formation and stability of lanthanum beryllates were discussed in view of crystal chemical principles. In comparison with the corresponding silicates as well as borates the lower stability of lanthanum beryllates can be ascribed mainly to the lower electrostatic binding strength of the Be-O bond, which would account for the liability of dissociation of beryllium-oxygen polyacidic ions at high temperatures.

采用淬火法以及显微镜和X-射线粉末法研究了La_2O_3-BeO系统的相关系,并作出相图。在这个系统中包含有La_2O_3·2BeO和3La_2O_3·2BeO两个化合物,后者可以溶解过量的氧化铍成固溶体,均相区域扩展于3La_2O-3·2BeO-La_2O_3·BeO成份范围内。 La_2O_3·2BeO的熔点是1363±3℃,而3La_2O_3·2BeO在1510±10℃分解熔融。三个不变点是:1356±2℃、40.8%LaO_(1.5)(BeO-La_2O_3·2BeO-液体);1362±4℃、51%LaO_(1.5)(La_2O_3·2BeO—3La_2O_3·2BeO固溶体—液体);和1510±10℃、66%LaO_(1.5)(3La_2O_3·2BeO-La_2O_3-液体)。 利用X一射线粉末法衍射数据,确定La_2O_3·2BeO与3La_2O_3·2BeO分别属于斜方晶系和六方晶系,并测定了它们的结晶光学性质。 从结晶化学的观点讨论了铍酸镧的形成及其稳定性。与相应的硅酸盐和硼酸盐相比较,由于铍氧镧具有较低的静电键强,可以说明在高温时铍酸镧的分解熔融行为。

An aspect is summarized of microscopic studies on certain slagged high-alumina bricks dismantled after arc furnace roof service with various steel smelt-ing operations in the past years since 1957. The bricks were attacked mainly byMgO, CaO and iron oxides. The MgO had its sources by evaporation and infiltra-tion from either magnesite fettling material or basic furnace wall under highertemperatures. It was identified by X-ray powder pattern and by microscopic ob-servation that the periclase grains or/and...

An aspect is summarized of microscopic studies on certain slagged high-alumina bricks dismantled after arc furnace roof service with various steel smelt-ing operations in the past years since 1957. The bricks were attacked mainly byMgO, CaO and iron oxides. The MgO had its sources by evaporation and infiltra-tion from either magnesite fettling material or basic furnace wall under highertemperatures. It was identified by X-ray powder pattern and by microscopic ob-servation that the periclase grains or/and needles occur in the slagged zone ofbricks. The iron oxides, if presence, accumulated themself mostly on the surfacelayer of slagged zone, formed an assemblage of reaction products and convertedinto two systems of ferro-spinels as (MF')A and (F'M)F. However, only MAspinel was formed with less iron oxides content. Other equilibrium phases contain-ing CaO may be monticellite and anorthite. The reaction products observed seemto be calcium- hexaluminate and gehlenite in the inner layer of slagged zone,and a certain amount of glass is also present.

本文汇集1957年以来某些电炉炉顶使用后高铝砖的显微镜观察工作,砖体主要受MgO,CaO和铁氧化物侵蚀.MgO来源于补炉镁砂和镁质炉墙在高温下的冲蚀和挥发,X射线和显微镜分析证实渣蚀带一些区域内存在粒状和针状方镁石晶体.存在铁氧化物时,基本上吸附在渣蚀带表面,形成有两个尖晶石固溶体〔(MF’)A和(F’M)F〕系列的矿物共生组合,当不存在铁氧化物时,在渣蚀带生成纯MA.其它平衡相有钙镁橄榄石和钙长石.在渣蚀带内层,反应产物为六铝酸钙和钙铝黄长石.

 
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