查询词典 crystal-ball

Barium calcium titanate crystal is a new photorefractive crystal. The BCT crystal has more excellent electrooptics properties than BaTiO_3 and has no phase transition at 5℃, which make this material quite attractive for applications.

钛酸钡钙晶体是一种新型的光折变材料，由于其优于钛酸钡的电光性能及无室温相变的优势，使其具有更大的应用前景。

In the third chapter, by the analysis of the thermal lens effect of laser crystal, single-end-pumped laser crystal is analyzed and a thermal model suited for particular operating circumstance is founded. By the use of equation of heat conduction and with the boundary conditions, the half analytic solution of thermal field in the laser crystal is obtained through half-analytic thermal analysis, and a practical example is calculated together with analysis of the effect of some parameters on the distribution of thermal field.

第三章从分析激光晶体的热透镜效应出发，对单端泵浦激光晶体进行了分析，建立了符合工作条件下激光系统的热温场模型，通过热传导方程及晶体的边界条件，利用半解析热分析方法得出了晶体内部温度场的半解析解，并对实例进行了计算，分析了各种参量对温度场分布的影响。

Under the high frequency vibrating action, the crystal grain formed on the surface of the crystal nucleus eradiation equipment would be broken and peeled off, thereby ejected to zinc molten pool continuously and served as crystal nucleus source of equiaxed grain during solidification.

结果表明，当一种带有冷却结构且进行高频振动的晶核发射器插入锌液内时，锌液在晶核发射器表面迅速形核且长大，在高频振动作用下表面形成的晶粒将被折断剥离，从而连续不断地弹射到锌液中，成为凝固过程中形成大量等轴晶的晶核来源；采用带有水冷和气冷结构的晶核发射器对锌液进行振动激发形核处理后，锌凝固组织中的等轴晶率可分别提高到65%和80%。

Based on the free electronic band model, we study the relationship between average bond energy E m and Fermi level E F in face centered cubic crystal, body centered cubic crystal and hexagonal closed packed structure crystal.

根据半导体自由电子能带模型，文中在面心立方晶体、体心立方晶体和 6角密堆积晶体中研究自由电子能带的平均键能 Em 和费米能级 EF 的关系，并得出自由电子能带的平均键能 Em 相当于费米能级 EF 的研究结果。

It include crystal image,Digital Figuline image,special decorate,crystal frame,and crystal wedding etc,it is very individual and fashion.

主要包括以下几大类：水晶影像，数码瓷像，个性装饰物、水晶相框、水晶婚纱，充满个性时尚。

It include crystal image,Digital Figuline image,special decorate,crystal frame,and crystal wedding etc,it is very individual and fashion. Moving Waterfall Pictures and Waterfall Pictures.

水晶瓷器影像系列：水晶瓷器影像就是利用，特殊加工工艺把普通的照片印在水晶，瓷器的杯子上、盘子、钟表、剃须刀、 CD盒、镜子、钥匙扣等各种器物上。

The analysis gets the result: the two methods both make out the heteromorphism InSb nanocrystals, which have different crystal lattices. There are few In and Sb elementary substance grains mixed in the samples and the ratio of two kinds of chemical elements nears to 1:1. The crystal structure of the particle which is gained in vacuum evaporation method is affected by the crystal structure of substrate surface and anneal, the size of grain is direct proportion to evaporation time.

分析得到结果表明：两种方法均制备出了多晶态的InSb纳米微粒，但晶格结构不同，样品中都混有少量的In和Sb单质颗粒，且两种元素的比均接近1：1；真空蒸镀法得到的微粒的晶态受基片表面晶格和退火的影响，颗粒的尺寸与蒸镀时间成正比；而惰性气体中蒸发法得到的微粒结晶过程与基片无关，颗粒的尺寸与惰性气体的种类和压强有关。

Provided is a liquid crystal sealant composition in which an aqueous solution obtained by admixing the epoxy resin composition with purified water has an ionic conductivity of 1 mS/m or less; the B stage-reduced product has a viscosity of 50 to 10000 Pa.s at 80 to 100 DEG C; the cured matter of the above composition has a linear expansion coefficient of 10x10-5 mm/mm/ DEG C or less and a glass transition temperature Tg of 100 DEG C or higher; and the above cured matter has a moisture permeability of 200 g/m2.24 hours or less at 80 DEG C and which can meet a liquid crystal display element produced by a single layer press hot bonding system and exhibits high adhesion reliability and makes it possible to produce a homogeneous liquid crystal display element having a high quality.

本发明提供一种液晶密封剂组合物，其中：通过将环氧树脂组合物与相同质量的净化水混合得到的水溶液具有离子电导率为1mS/m或更小；在80～100℃下半溶阶段折合产物的粘度为50～10000Pas；上述组合物的固化物具有线膨胀系数为10×10－5mm/mm/℃或更小，热形变温度Tg为100℃或更高；且上述固化物在80℃时具有透湿率为200g/m224小时或更小，这能够满足通过单层热压粘结体系生产的液晶显示元件，并具有高的粘结可靠性，使得有可能生产出具有高质量的均匀液晶显示元件。

In order to observe crystal birefringence phenomenon visually,this paper designed and fabricated the visually experimental demonstrating device of crystal birefringence phenomenon by using the scattering process of impurity in non-optically natural Iceland crystal.

为了能够直观地观察到晶体中的双折射现象，利用非光学级的天然晶体冰洲石中杂质对光的散射作用，设计、制做了晶体双折射现象的直观实验演示器。

The results showing that α-Ti, atomic crystal with face-center structure became TiH2, ionic crystal with cubic-center structure, and there were two parallel process after electrolysis: chemical adsorption occured on the surface of material mainly, but dominant physical adsorption enhanced dislocation of crystal.

结果表明，电解后面心立方结构的原子晶体α-Ti转变成了体心立方结构的离子晶体TiH2；存在着两个不平衡的并行进程：化学吸附主要发生在材料表面，占优势的物理吸附强化了材料内部的晶体位错。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐