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复杂晶体
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  complex crystals
     Chemical bond parameters of Ce3(SiO4)2X(X = Cl,Br,I) series crystals are calculated by using complex crystals chemical bond theory.
     利用复杂晶体化学键理论对Ce3(SiO4)2X(X=Cl,Br,I)系列晶体中的化学键参数进行了理论计算.
短句来源
     From the structure date of the rare earth ethylsulphates RE(C2H5SO4)3·9H2O(RE=La→Lu,except Pm),their efficient valence electrons,efficient valence densities andaverage coordinatiOn numbers of bonds etc,have been calculated by using the chemical bondtheory of complex crystals of dielectric description。
     利用复杂晶体化学键的介电描述理论,计算了稀土乙基硫酸盐晶体Re(C_2H_5SO_4)_3·9H2O,(Re=La→Lu,不含Pm)各化学键的键参数,讨论了每一个键的键性质,结果显示,晶体中存在16种类型和性质不同的化学键。
短句来源
     The relation between the crystal formula and bonding formula-bonding formula equation, was established. The effective charge of a valence electron was given. The theoretical calculation of chemical bonds on complex crystals was solved systematically and it is applied to calculate Y_3Al-5O_(12), YAlO_3, Y_2O_3, YVO_4 and YPO_4 crystals.
     本文提出了多键复杂晶体的分子式分解为单键的键子式的方法,建立了键子式和分子式的关系—键子式方程,提出了有效价电子电荷的概念,系统介解了复杂晶体化学键的理论计算方法,具体计算了Y_3Al_5O_(12),YAlO_3,Y_2O_3,YVO_4和YPO_4晶体的化学键参数.
短句来源
     Applications of the Theory of Complex Crystals in Nonlinear Optical Materials
     复杂晶体化学键理论在非线性光学材料中的应用
短句来源
     The nephelauxetic effects of Ni2+ and Er3+ in solids were systematically calculated by means of a new method based on the dielectric description theory of chemical bond on complex crystals.
     应用介电描述的复杂晶体化学键理论,给出计算Ni2+和Er3+在固体中的电子云扩大效应的新方法.
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  “复杂晶体”译为未确定词的双语例句
     Chemical bond parameters in RBa 2Cu 4O 8(R=Dy, Ho, Er, Tm, Yb) and Y 2Ba 4Cu 7O 14.3 were calculated by using complex chemical bond theory.
     使用复杂晶体上化学键理论计算了 RBa2 Cu4 O8(R=Dy,Ho,Er,Tm ,Yb)和 Y2 Ba4 Cu7O14 .3 的化学键参数 .
短句来源
     The chemical bond properties of the magnetoplumbite type compound LaMAl 11 O 19 (M=Mg,Fe) have been studied by using the average band gap model of the complex crystal chemical bond.
     利用复杂晶体化学键的平均能带模型研究了LaMAl11O19(M =Mg ,Fe)晶体的化学键性质。
短句来源
     The bond covalency,bond susceptibility and macroscopic linear susceptibility in La 1- x Nd x CrO 3(x=0.0,0.2,0.4,0.6,0.8,1.0)has been studied with a semiempirical method.
     使用复杂晶体化学键理论计算了La1-xNdxCrO3 (x =0 .0 ,0 .2 ,0 .4,0 .6 ,0 .8,1.0 )的化学键参数 ,如键性、键极化率等。
短句来源
     Chemical bond parameters in Eu 2+ doped solid states borates were calculated by using complex chemical bond theory,The covalency of the bond between dopant ion and coordinate anions,indicated in the conclusion,are different from each other in different host lattices.
     利用复杂晶体化学键理论对Eu2 +掺杂的硼酸盐晶体Ba2 LiB5 O10 ,Ba2 MgB2 O6 ,Ba2 Be2 B2 O6 ,BaLiBO3,SrB4 O7和SrAl2 B2 O7的化学键参数进行了理论计算 .
短句来源
     By using the average band-gap model, the chemical bond properties of (La1-xMx) 2CuO4 (M=Ba, Sr) werecal-culated . The calculated covalencies for Cu-O and La-O bond in the compounds are 0.3 and 0.03 respectively.
     利用复杂晶体化学键电介质的平均能带模型研究了(La_(1-x)M_x)_2CuO_4(M=Ba,Sr)的化学键特性,得到Cu-O键的平均共价性为0.3,La-O键的平均共价性为0.03。
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  相似匹配句对
     Crystal growth is a complicated phase transition process.
     晶体生长是一个复杂的相变过程 .
短句来源
     Its pathogeny is complex.
     其病因复杂
短句来源
     On Complex Reality
     复杂的实在
短句来源
     ON THE CHAIN BODY OF COMPLEX OXIDE——CRYSTALLOCHEMICAL PROPERTIES OF WOLFRAMITE
     试论复杂链状氧化物—黑钨矿的晶体化学特征
短句来源
     SPIRAL CRYSTALS
     螺旋晶体
短句来源
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  complex crystals
Finally, the heterogeneity of complex crystals may be characterized proceeding from the qualitative estimate of the degree of distortion of their conoscopic figures.
      
The symmetry of complex crystals composed of sublattices belonging to different Bravais typeshas been investigated.
      
The question of the possible nature of the low-temperature plateau in the thermal conductivity of the complex crystals BSCCO and BSYCO is discussed.
      
A simplified model suitable for calculating the metallization effect in more complex crystals is proposed.
      
Electronic-structure calculations for complex crystals
      
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A new phenomenon about {111} planar particles blocking dip in Si has been found. Between the {111} planes in single crystal Si there are two interplanar spacings, d(111)(a) and d(111)(b), but there is only one interplanar spacing d(110) between Si {110} planes, so that their blocking dips would be different. We have observed this difference from the experiments of a particle and proton blocking effect in single crystal Si. We have also estimated the 2ψ1/2 angles from planar particles blocking dips with d(111)(a),...

A new phenomenon about {111} planar particles blocking dip in Si has been found. Between the {111} planes in single crystal Si there are two interplanar spacings, d(111)(a) and d(111)(b), but there is only one interplanar spacing d(110) between Si {110} planes, so that their blocking dips would be different. We have observed this difference from the experiments of a particle and proton blocking effect in single crystal Si. We have also estimated the 2ψ1/2 angles from planar particles blocking dips with d(111)(a), d(111)(a) and d(110) in Si respectively. According to the author's knowledge, up to the present, this phenomenon has not yet been discovered at home and abroad. This new phenomenon will promote the study of complex crystals using the blocking and channeling effects.

本文报道了从粒子背散射堵塞效应的实验中所发现的单晶Si的{111}晶面粒子堵塞坑的新现象。单晶Si的{111}晶面有两个面间距d_(111)~(a)和d_(111)~(b),而{110}晶面只有一个面间距d(110)。由此导致两者的堵塞坑是不同的,我们已从α粒子和质子的Si单晶堵塞效应的实验得到了证实。并由此估计了d_(111)~(a)和d_(111)~(b)以及d_(110)的2ψ1/2角。据作者了解,到目前为止,国内外还没有人发现此现象。此现象的发现对复杂晶体的堵塞和沟道效应的研究开阔了前景。

This paper h,ald differing views Tor the definitian of lattice in the current text-b.x}ks, and advanced a new definition, It proved the lattice of caesium chloride belong to the simple cubic lattice not the cubic body-centred lattice,It point out the misleading cause for the lattice of caesium chloride.

晶格(或点阵)这个概念在讨论晶体结构时是非常重要的。遗憾的是这个概念在不少的教科书中介绍得不够准确,以致学生在学习较复杂的晶体结构时有困难。此外,一部分教科书按照这个定义确定晶体的晶格时出现了差错,把氟化铯晶体错误地归属于体心立方晶格就是常见的一例。本文拟对晶格(或点阵)的定义及氟化铯晶格的归属问题进行一些讨论,以就教于同行们。

Absorption spectra, oscillator strength, radiative lifetime of R-line in Na4Ge9O20: Cr3+ were investigatoed in the temperature range of 10K and 300K. The measured temperature dependence of B-line was explained by a theoretical model which supposed that the population in excited states abode by Boltzmann distribution. A new method for determining positions of Cr3+ in complex crystals has been developed.

报道了在10~300K温度范围内,Na_4Ge_9O_(20)单晶中掺杂Or~(3+)的吸收谱、振子强度以及R线的辐射寿命与温度关系;用激发态粒子数遵从玻尔兹曼热平衡分布的理论模型解释了R线辐射寿命与温度关系的测量结果;提出了在复杂晶体中确定Cr~(3+)占位的新方法.

 
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