双晶

Theoretical analyses show that the BRF has the maximum tuning rate when the optic axis is located on the cone with its symmetric axis being on the refracted ray and apex of 45°; and the rejection of unwanted wavelength of BRF becomes the maximum when the optic axis is in the plane which contains the refracted ray and makes the angle of 45° or 135° with respect to the incident plane.

分析表明当晶片光轴处在以折射光线为轴线、顶角为45°的圆锥面上时，双折射调谐器具有最快的波长调谐速率；当光轴位于过折射光线并与入射面成45°或135°的平面内时，调谐器抑制非所需波长的能力最强。

Quartz is commonly found as a six-sided, prism-shaped crystal topped by pyramid-like form, while calcite usually shows a crystal form of rhombohedron.

石英通常呈六方柱，顶上带有双锥的晶形，而方解石却常以菱形六面体形式出现。

This study has successfully synthesized CaCO3 particle with disk, hexagonal plate, rhombohedron, sphere-like, spindle, twin-rosette, doughnut, rods and filament in shapes.

本实验已成功合成具圆盘片状、六角片状、甜甜圈状、菱形体、纺锤状、类球状、双办花、条状、丝状晶貌之碳酸钙。

To lower coating silver,a study on the preparation of silver chloride and bromide emulsion is carried out, including the ratio of chloride and bromide , the residue of chloride and the solvent of silver halide.

为降低涂布银量，应用计算机双注乳化仪，进行了获得具有较高反差的单分散、立方晶型卤化银乳剂的工艺条件的研究，包括不同卤素比例、卤余量和卤化银溶剂的应用对卤化银颗粒大小和照相性能的影响。

The biaxial molecules interact via dispersion forces and the molecular centres of mass are located at the sites of a simple cubic lattice.

双轴分子通过色散力作用，使分子质心固定在简单立方晶格的格点上。

The phase diagram of spin configurations of the two - sublattice system are derived by both the mean field theory and the spin wave theory. The effect of the anisotropies of the two sublattices on the spin waves is discussed.

用自旋波量子理论解析导出双亚点阵系统的自旋织构的相图，比较了自旋波理论和分子场理论导出的结果，分析了不同磁晶各向异性对自旋波的影响。

For some crystals located on the 001/〓11 boundary in the stereographic triangle, such as [〓33] , [〓17] and [001] crystals, their values of θ〓 are quite high, and increase monotonously with increasing γ〓.

因此，关于双滑移和多滑移取向单晶体的循环形变行为的研究对于更好地理解多晶材料的循环形变行为是至关重要的。

It is discovered that there is a new magnetic transition: the first order spin reorientation reform , at which the magnetization, the anisotropy coefficients and the mean fields of the two - sublattice system change, accompanying with the spin reorientation.

还发现存在一级自旋再取向重整转变，在发生自旋再取向转变的同时双亚点阵系统的磁化强度，磁晶各向异性参数，分子场等磁性的大小都发生改变，是一种新型磁性相变。

Bi-color Ametrine blends the golden sunburst of Citrine with the purple sunset of Amethyst.

双色莹石将黄晶的旭日金辉与紫水晶的日落紫晕融为一体。

The composition voltage, the electric current double closed loop voltage-stabilized source, used the integrated phase shifting crystal thyratron module to do for the electrical energy transformation component, in detail has calculated the rectification main circuit main component parameter; In the pulse-duration modulation part, used the special-purpose integrated circuit to realize the frequency modulation to adjust the pressure, did take IGBT as the power transformation component, realized the output voltage frequency modulation to adjust the pressure, and has calculated the related parameter.

在调压稳压电压源设计中采用二阶工程设计法设计了电压和电流调节器，组成电压、电流双闭环稳压电源，采用集成移相晶闸管模块做为电能变换器件，详细计算了整流主电路主要器件的参数；在脉宽调制部分，采用专用集成电路实现了调频调压，以 IGBT 做为功率变换器件，实现了输出电压的调频调压，并计算了有关参数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。