查询词典 crystal-ball

The possibility of liquid crystal used in optical isolator is discussed based on the selective reflection of cholesteric liquid crystal .

利用手性液晶的Bragg选择反射特性，理论分析了液晶在光隔离技术中的应用可能性。

Both cholesteric liquid crystal polymer cholesteric liquid crystal optical properties and the unique characteristics of the polymer which has a wide range of applications.

胆甾液晶高分子兼具胆甾相液晶的独特光学性质及高分子的特点从而具有广泛的应用前景。

The possibility of liquid crystal used in optical isolator is discussed based on the selective reflection of cholesteric liquid crystal.

实验结果证实，液晶光隔离器对单色光具有较好的光隔离特性(光隔离度=13dB)和较高的正向透过率(插入损耗=1dB)，在大口径光隔离器的制造上具有重要的应用价值。

By investigating a series of homologous cholesteric liquid crystal materials,it is found that the cholesteric liquid crystal phase transition temperatures reduce along with change length of the molecules.

首次报告利用液晶分子的机械旋转模型研究胆甾相液晶材料相变与分子构造相关性的研究结果。通过对不同质量的系列胆甾相液晶材料的研究，发现材料的相变温度随着分子的变长而降低。

A new type of high-birefringence photonic crystal fiber is brought forward, and the method introducing circinal holes with different sizes or elliptical holes which is used to design high-birefringence photonic crystal fiber is replaced by introducing fluorine-doped solid circles.

提出了一种新结构的高双折射光子晶体光纤，通过引入掺氟实心圆的方式形成双折射，而不采用大多数高双折射光子晶体光纤中引入不同孔径空气孔或椭圆空气孔的结构。

CaSiO〓 came out to be major crystal phase in glazes with high CaO/MgO ratio. Relatively, melilite and clinopyroxene became major crystal phase when CaO/MgO ratio neared 1 or when MgO was more than CaO.

在釉式中其它组分固定时，氧化铝、氧化硅含量较低时，熔体粘度较小，有利于形成晶体结构简单的晶相；对同结构的晶体而言，有利于晶体的快速生长。

It is suitable for medium such as water, gas, heat energy, crystal and powder material etc, especially suitable for medium of easy sedimentation, fouling, crystal, lumber, mixed with foreign impurity, sewage and medium with corrodibility, high scouring and great friction.

适用于水、气、热能、浆液、晶粒、粉状物料等介质，特别是能满足两相流溶液工艺流程中易沉淀、结垢、结晶、析出、杂物、异物混杂的介质、污水及腐蚀性、高冲刷性、琢磨性强的特殊需求。

Based on the problem of various types of catalyst and according to the features of carbonylation catalysts reactions, our team has been designed a series of new metal complexes of benimidazoles, which can be used for carbonylation catalyst of industry. Seven new benzimidazole derivatives were prepared by the o-phenylenediamine、oxalic acid、glycolic acid、monomethyl monopotassium malonate、ethyl cyanoacetate、succinic anhydride. The structures of them were confirmed by IR、Elemental analsis. The crystal structures of d and e were determined by X-ray single crystal diffraction of Germanic Bruker Smart APEX II CCD. The catalysis of them was tested by carbonylation reactions.

本文设计以邻苯二胺和草酸、羟基乙酸、丙二酸单甲酯、氰基乙酸乙酯、丁二酸单甲酯为原料采用PPA催化和无机酸催化法，合成了4种苯并咪唑-2-羧酸衍生物并进行了表征；培养了2个化合物d、e的晶体并测定和讨论了晶体结构；制备了3种未见报道的苯并咪唑金属配合物，对配合物在羰基化法制醋酐-醋酸反应的催化作用进行了初步试验。

At present, since fluorobenzene liquid crystal and cyclohexyl crystal are very popular liquid crystals. some research have done on the synthesis of the intermediate, fluorophenol and alkylcyclohexylbenzene compounds in this thesis.

本论文的主要内容分为两部分：第一部分，针对目前液晶材料研究的热点：含氟液晶和环己烷类液晶，就其液晶材料中间体氟代苯酚和烷基环己基苯类化合物的合成进行研究。

Dewax manufacturing derived from ancient Egypt, the technology extremely difficult which the whole process need take to dozens processes, Relying on its sparkling crystal materials, production techniques of delicate performance and unchangeable color, each of the crystal works have a unique charm and personality unparalleled which enjoyed and treasured up by all walks of people.

脱蜡制造法源于古埃及，整个过程需要数十道工序才能完成，技术难度极高。琉璃凭借其晶莹剔透的水晶材质，铸造技法的细腻表现，变幻莫测的色彩效果，使每一件琉璃作品都各具无可比拟的独特魅力与个性。在国内外备受推崇，深得各界人士的喜爱与珍藏。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！