晶体

Crystal growth velocity increased gradually followed by the decrease of heating temperature. When heating temperature was closer to crystallization temperature, rate of change of crystal growth velocity was more drastic, temperature gradient and the convexity ratio of solid-liquid interface decreased.

随加热温度的降低，晶体生长速率逐渐增大，加热温度愈接近结晶温度，晶体生长速率变化率就愈剧烈；界面凸出率及晶体/熔体中温度梯度随之减小。

Crystals having this property are said to be doubly refracting , or birefringent.

具有这种性质的晶体叫做双折射晶体.

These crystals are then embedded in a plastic, and the plastic is extruded as a wire.

然后将这些晶体嵌入一块塑料，再把塑料挤压成线。

The acid etched holes in the crystal surface.

那种酸在晶体表面蚀刻出一些小孔。

According to crystal field theory, the spectral performances have been studied, the energy level of Ni~ ( 2+) ions in Be Al_2O_4 has been established primarily. BeAl_2O_4: Ni~ ( 2+) as a potential phonon-terminated laser crystal has been discussed.

根据晶体场理论研究了光谱特性，初步确定出Ni~（2+）在BeAl2O4晶体中的能级结构，讨论了BeAl2O4：Ni~（2+）晶体成为终端声子可调谐激光晶体的可能性。

Microscopic needle-shaped crystals of herapathite are embedded in a plastic base.

将碘硫酸奎宁的微观针状晶体嵌于塑料片基之中.

These thin crystals transmit much of the power.

这些薄薄的晶体传导了大部分的动力。

Diamond is the crystalline form of the element carbon.

钻石是碳元素的晶体结构。

The problem of whether the effect between particles is destroyed or not is analyzed in this paper, when ionic crystals, molecular atomic crystals and metallic crystals are melting, boiling or dissolving in water. That is the problem whether the chemistry bond is broken or not.

分析了离子晶体、原子晶体、分子晶体和金属晶体在熔化、沸腾以及溶于水时，微粒的相互作用是否破坏，即化学键是否断裂的问题。

The regularity of the crystal goes beyond this, however.

然而,晶体的规则性不止于此.

This paper briefly reviewes the recent progress of VHF/ UHF crystal filter, the characters of VHF/ UHF resonator and the performances of VHF/ UHF crys-tal filter, and makes a comparison between BAW crystal filter and SAW resonator filter.

简要评述了近几年来VHF/UHF晶体滤波器的进展，讨论了VHF/UHF谐振器的特点、VHF/UHF晶体滤波器的性能，以及SAW晶体滤波器和谐振器性能的比较。

In addition, we analyzed the relationship that between the rotation speed of the crystal and crucible and the crystal growth. Also we found that different kinds of the crystal, the diameter of the crucible and after heater had effect on the temperature field.

另外模拟分析了晶体和坩埚旋转速度对晶体生长的影响，不同晶体和坩埚直径对晶体生长温场的影响，以及后热器对晶体和熔体中温度梯度的影响。

The crying boy tries to fry the dry crystal.

哭喊的男孩试图用油炸干晶体。

We tried to grow some copper sulphate crystals with our children.

我们想跟孩子们一起制作硫酸铜晶体。

A 946 nm Nd: YAG laser pumped by a laser diode was obtained using four mirrors ring resonator. the laser was single-frequency operated by using a TGG and a half-wave plate acted as optical diode in the cavity.

用激光二极管（LD）抽运Nd：YAG晶体，采用四镜环行腔，腔内放置TGG晶体和λ/2波片，组成光学单向器，利用LBO晶体内腔倍频技术，实现单频946nm红外光和473nm蓝光输出。

This Bragg Equation is without limit on crystal size, can be used to describe the angular divergence of minicrystal diffraction, diffraction of thin crystal, and the integral intensity of polycrystal diffraction in positive lattice, etc.

广义布拉格方程不受晶体尺寸限制，可以在正空间中描述微晶体衍射的角发散，薄晶体的衍射，多晶体衍射的积分强度等问题。

Lens opacities: 5 cases of phakic patients with different degrees of lens opacity or increased turbidity, mainly show posterior subcapsular cortical cataract.

晶体混浊：5例有晶体眼患者术后晶体有不同程度的混浊或混浊程度加重，主要表现为晶体后囊下皮质混浊。

And then, a window-type novel x-ray crystal spectrometer was put forward based on the elliptically curved crystal analyzer.

在此基础上，提出了基于椭圆型分光晶体的窗式X射线晶体谱仪，并研制完成了窗式X射线晶体谱仪。

Electron microscopy has revolutionized the study of crystal imperfections.

电子显微学已经革新了对晶体不完整性的研究.

All systems requiring accurate timing will require a crystal.

所有需要精确定时的系统都要用晶体.

The results show that during the growth of crystal with GOI method proper program of temperature control is good for the quality of crystal.

结果表明，在GOI法蓝宝石晶体生长中，合适的降温控制程序有利于提高晶体生长质量，晶体生长速率会随着加热温度的降低而快速增加。

cubic, tetragonal, orthorhombic, monoclinic, triclinic, and hexagonal.

立方体、正方三八面体、斜方晶体、单斜晶体、三斜晶体和六方晶体。

The dielectric permittivity and pyroelectric coefficient of Tb-modif ied Sr 0.61 Ba 0.39 Nb 2 O 6 crystals were measured.

用铽改性SBN晶体能有效地改善晶体的性质.实验测量了铽改性Sr0.61Ba0.39Nb2O6晶体的电容率和热电系数.

It looks like quartz crystals sticking up out of the dark hollow.

它象石英晶体,在黑色的空间耸立着.

Now let us consider crystals such as diamond or sapphire.

现在让我们考虑象钻石和蓝宝石这样的晶体.

Real crystals exhibit a variety of departures from this idealized structure.

真实晶体和这种理想的结构有种种出入.

MnxCd 1-xIn 2 Te 4 ingots were grown by Bridgman method.

本文首次采用Bridgman法生长 了Mn_ xCd_(1-x) In_ 2Te_4晶体,并研究了晶体中相的形貌、结构、成分和晶体中各组元沿轴向和径向的成分分布.

The crystal imperfections we consider here are called point defects.

我们认为这里的晶体缺陷是致命缺陷.

Attributes of three nonlinear crystals, BBO, LBO and BIBO, have been summarized.

总结了三种用于蓝光的倍频晶体:BBO晶体, LBO晶体和 BIBO 晶体.

Bipolar or conventional transistors are used in manufacturing transistor-transistor logic ( TTL ) and emitter-coupled logic ( ECL ) devices.

二极管或传统的晶体管用于制造晶体管一晶体管逻辑电路 ( TTL ) 和发射极耦合逻辑电路 ( ECL ) 设备.