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晶体密度
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  crystal density
     STUDY ON THE RELATIONSHIP BETWEEN Hg_(1-x)Cd_xTe CRYSTAL DENSITY AND INGREDIENT
     Hg_(1-x)Cd_xTe晶体密度和组分的关系
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     The crystal density increased by further 10% and T 3℃ after the third stage.
     经第三个阶段后,晶体密度进一步上升10%,熔点再次上升3℃。
短句来源
     The crystal density ( ρ c and ρ m ) of four polymorphs ( α HNIW1/2H 2O, β HNIW, γ HNIW and ε HNIW) of HNIW was obtained. ρ c was calculated on the basis of crystal parameters given by X ray diffractometers. ρ m was determined according to GJB772A 97,401.1 using density bottle methods.
     以 X射线衍射仪测得的晶体学数据计算了六硝基六氮异伍兹烷的四种晶型 (α- HNIW1/ 2 H2 O,β- HNIW,γ- HNIW和 ε- HNIW)的晶体密度 ,同时根据 GJB772 A- 97,40 1.1所规定的密度瓶法实测了上述四者的密度。
短句来源
     The second stage was the extension of folded lamellar crystals. The crystal density increased by 10% after the second stage and the melting point (T_m) increased by 4~6℃.
     第二阶段,折叠链片晶开始被拉直,经过这个阶段,晶体密度上升约10%,熔点上升4~6℃;
短句来源
     For predicting detonation velocity (D) and pressure (P) of a polynitro cage compound at its theoretical maximum density with R-P empirical method, it is nec- essary to modify the term A/3 dealt with the molecular structure in the F factor and to consider the contribution of high crystal density and high strain energy embedded in the molecule stemming from the cage systems to the F factor.
     当采用R-P经验方法预估多硝基笼状化合物最大理论密度下爆速和爆压时,需要修正F因子中与分子结构有关的A/3项,使F因子包含有来自笼状分子高晶体密度和分子内部高张力能的贡献。
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  “晶体密度”译为未确定词的双语例句
     It shows orthorhombic, and it's space group isP212121 with a = 10. 895 (3), b = 13. 237 (2),c = 15. 373 (3) A,V = 22l7. 0 (3) A 3 Z = 4,D.
     ,晶胞参数为a=10.895(3)、b=13.237(2)和c=15.373(3)A,晶胞体积为V=2217.0(3)A3,晶胞内分子数Z=4,计算晶体密度Dc=1.302gcm-3。
短句来源
     = 1.546g/cm3. The chemical formula of the crystal is [(NH4) (18C6)]2 [Ag2(SCN)4].
     晶体密度的计算值:D_(eal)=1.546g/cm~3。 经元素分析和X射线结构分析,确定晶体的化学式为[(NH_4)(18C6)]_2[Ag_2
短句来源
     The PCL crystallizes in the orthorhombic system, with lattice dimensions:a=0.7472 nm, b=0.4995 nm,c=1.7050 nm;
     求出晶胞参数a=0.7472nm,b=0.4995nm,c=1.7050nm,V=0.6363nm ̄3及晶体密度Dc=1.20g/cm ̄3;
短句来源
     In 83.6%(46/55) of traumatic cataractous lens,the density was lower than that of the contralateral normal lens and the lens density of 17 was similar to that of the vitreous body.
     83.6%(46/55)的白内障晶体密度降低,其中17例晶体密度近似于玻璃体密度。
短句来源
     Application of Artificial Neural Network in Predicting the Density of Explosives
     神经网络在炸药晶体密度预测中的应用
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  相似匹配句对
     THE MEASUREMENT OF REFRACTIVE INDICES AND DENSITY OF RARE-EARTH PENTAPHOSPHATE CRYSTALS
     稀土五磷酸盐晶体折射率和密度的测定
短句来源
     The energy State densities of NaI crystal
     NaI晶体能态密度的研究
短句来源
     The line density and area density have been counted.
     区的密度
短句来源
     SPIRAL CRYSTALS
     螺旋晶体
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     Photonic Crystals
     光子晶体
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  crystal density
The nonequivalence of the crystallographic {110} and {111} planes in Y3Fe5O12 (YIG) garnet crystals was revealed in the analysis of the crystal density as a function of the intensity ratio of coherent and incoherent X-ray scattering (K/nk).
      
A linear dependence of the crystal density on the SrF2 concentration has been revealed for each series of solid solutions.
      
A method is suggested for taking into account the thermal nuclear excitation and the influence of zero-point vibrations on the pressure dependence of crystal density.
      
Ice crystal density variation with temperature reported by cloud physicists is used in the model to predict the density variation of frost during the crystal growth period.
      
The crystal density and gaps seem appropriate for their use in gamma-ray detectors.
      
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  crystalline density
An average crystalline density was determined from the orthorhombic unit cell dimensions.
      
Numerical results are obtained for silicon using a Keating crystalline density of states and assuming that the average values of the coupling parameters are identical to the crystalline ones.
      
The method only requires a rough estimate of the crystalline density.
      
Wide angle X-ray diffraction (WAXD) data at room temperature showed that mHDPE crystals are more perfect with smaller unit cell dimensions and have higher crystalline density and larger crystallite sizes when compared to zHDPEs.
      
In seeking for such an explanation, we will test a collection of approximate models of the crystalline density.
      


The crystal structure of prehnite has an orthorhombic unit ceil with α=4.64 ,b=5.50 and c=18.4 ,which contains 2{Ca_2Al_2Si_3O_(10)(OH)_2}.The space group isThe trial structure was derived from Patterson functions by means of spacegroup theory and crystal-chemical considerations.It was then confirmed andrevised by Fourier projections ρ(x,z)and p(y,z).The structure of prehnite consists of ions Ca~(2+),Al~(3+),OH~- and[Si_3AlO_(10)]_n~(5n-).The ions[Si_3AlO_(10)]_n~(5n-) have a peculiar layer structure,whose...

The crystal structure of prehnite has an orthorhombic unit ceil with α=4.64 ,b=5.50 and c=18.4 ,which contains 2{Ca_2Al_2Si_3O_(10)(OH)_2}.The space group isThe trial structure was derived from Patterson functions by means of spacegroup theory and crystal-chemical considerations.It was then confirmed andrevised by Fourier projections ρ(x,z)and p(y,z).The structure of prehnite consists of ions Ca~(2+),Al~(3+),OH~- and[Si_3AlO_(10)]_n~(5n-).The ions[Si_3AlO_(10)]_n~(5n-) have a peculiar layer structure,whose plane is parallel to(001).Adjacent layers are cemented together by Al~(3+)ions,which are octahedrallycoordinated by 4 o atoms and 2 OH groups.The layers[Si_3AlO_(10)]_n~(5n-)are actuallysheet frameworks of finite thickness,which have been mentioned by W.H.Taylorin a discussion regarding the structure of heulandite.In the light of.this structure model,all known properties of prehnite can b~eunderstood.

葡萄石的组成为 Ca_2Al_2Si_3O_(10)(OH)_2。晶体的 Laue 对称性确定为 D_(2h)。正交晶胞的参数为α=4.64(?),b=5.50(?),c=18.4(?)。晶体的密度为2.925克/厘米~3。正交晶胞中当含有2{Ca_2Al_2Si_3O_(10)(OH)_2}。晶体的可能空间群为 D_(2h)~7-Pncm 或 C_(2v)~6-Pnc2。为推引正离子在晶胞中各种可能的分布方式,计算若干 Patterson 函数,然后逐步按照对称性、空间考虑以及硅酸盐的其他晶体化学特点,对正离子和负离子的位置作出安排,从而取得到一合理的试用结构。这个结构具有 D_(2h)~7的对称性。最后,按照这个模型计算电子密度分布函数ρ(x,z)和ρ(y,z)。计算结果肯定试用结构。葡萄石结构系由 Ca~(2+),Al~(3+),OH~-和[Si_3AlO_(10)]_(?)~(5(?)-)等离子组成,其中层型硅氧骨干系与(001)面平行,相隣的骨干通过离子 Al~(3+)得以结合。在这结构中,离子 Al~(3+)有两种配位型式,一半在四面体中,另一半在4个氧原子和2个氢氧基组成的八面体中。离子Ca~(...

葡萄石的组成为 Ca_2Al_2Si_3O_(10)(OH)_2。晶体的 Laue 对称性确定为 D_(2h)。正交晶胞的参数为α=4.64(?),b=5.50(?),c=18.4(?)。晶体的密度为2.925克/厘米~3。正交晶胞中当含有2{Ca_2Al_2Si_3O_(10)(OH)_2}。晶体的可能空间群为 D_(2h)~7-Pncm 或 C_(2v)~6-Pnc2。为推引正离子在晶胞中各种可能的分布方式,计算若干 Patterson 函数,然后逐步按照对称性、空间考虑以及硅酸盐的其他晶体化学特点,对正离子和负离子的位置作出安排,从而取得到一合理的试用结构。这个结构具有 D_(2h)~7的对称性。最后,按照这个模型计算电子密度分布函数ρ(x,z)和ρ(y,z)。计算结果肯定试用结构。葡萄石结构系由 Ca~(2+),Al~(3+),OH~-和[Si_3AlO_(10)]_(?)~(5(?)-)等离子组成,其中层型硅氧骨干系与(001)面平行,相隣的骨干通过离子 Al~(3+)得以结合。在这结构中,离子 Al~(3+)有两种配位型式,一半在四面体中,另一半在4个氧原子和2个氢氧基组成的八面体中。离子Ca~((?)+)则处在5个氧原子和2个氢氧基形成的配位中。葡萄石中[Si_3AlO_(10)]_n~(5n-)的结构型式与一般层型硅氧骨干不同,实际上是一种层型骨架。在上述结构模型的基础上,葡萄石的组成和性能已可得到充分阐明。

An X-ray examination of the reddish-brown coloured rhombohedral crystals of the tris-thiourea complex of molybdenum(Ⅲ) chloride MoCl3tu3 (tu=CS(NH2)2) gives the following crystallographic duta: a=8 .78A. c=17.56A, containing 3 MoCl3tu3 per unit cell (pobs=1.83 g/cm3. Pcnlc=1 .73 g/cm3), and belonging to the space group C34-R3. On the basis of the Patterson projection P0 (u. w) we have been able to determine the structure of this non-centro--symmetrical crystal with R=18% for the (hol) diffraction data In this...

An X-ray examination of the reddish-brown coloured rhombohedral crystals of the tris-thiourea complex of molybdenum(Ⅲ) chloride MoCl3tu3 (tu=CS(NH2)2) gives the following crystallographic duta: a=8 .78A. c=17.56A, containing 3 MoCl3tu3 per unit cell (pobs=1.83 g/cm3. Pcnlc=1 .73 g/cm3), and belonging to the space group C34-R3. On the basis of the Patterson projection P0 (u. w) we have been able to determine the structure of this non-centro--symmetrical crystal with R=18% for the (hol) diffraction data In this crystal each Mo atom is octahedrally linked with 3 Cl ions and 3 thiourea S atomt. arranged in the cis manner so as to meet the 3-jold requirement of the crystallographic symmetry. The relevant bond lengths and bond angles are as follows: Mo-Cl 2.40A Mo-S 2,44A.

我们应用单晶X射线衍射方法研究了Mo(tu)3Cl3的晶体结构。晶体的空间群为C34-R3;单胞参数力:a=8.78A,C=17.56A。晶体的密度用排量法测得为 1.83g/cm3,单胞内含有三个Mo(tu)3Cl3(密度计算值为1.83g/cm3)。结构的测定主要是通过Patterson投影和电子密度投影的计算来解决的。研究结构表明,在Mo(tu)3Cl3分子中,MO原子和三个Cl原子、三个硫脲的S原子直接配位,这六个原子按顺式排布在八面体的顶点上,因此分子具有三次轴的对称性,而整个晶体是由一层一层的分子所构成的。

A new graphic method has been developed for indexing Debye-Scherrer photographs, Utilizing the sin2θ values of three low angle reflexions and the density of the crystal investigated, a series of conditional lines and equiatomic curves are drawn in the A-C space, where A=λ2/4αand C=λ2/4C2 in the tetragonal system, and A=λ2/3a2 and C=λ2/4c2 in the hexagonal system.

本文叙述了标定德拜-谢乐照相指数的一个新图解法。利用三条低角度衍射线的sin~θ值和该晶体的密度,在A-C空间画一系列条件直线及等原子曲线。三条条件直线和一条等原子曲线的交点直接决定了晶胞的大小和晶胞内所含的原子数或位形单位数。这个方法可应用于四方晶系和六角晶系。

 
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