查询词典 crystalline

The researches show that polymer PM5MPP and copolymer M5MPP/MMEANB are enantiotropic liquid crystalline polymers, but polymer PMMEANB has no liquid crystalline properties....

结果表明，均聚物PM 5MPP及共聚物(M 5MPP/MMEANB)属双向液晶高分子；PMMEANB属于非晶性高分子。证实了分子间吸电子与给电子基团相互作用有利于提高液晶高分子热稳定性，共聚物(M 5MPP/MMEANB)具有较宽的液晶相温度范围。

The crystalline mechanism of heteronuclear crystalline is found out by theoretical analyzing the chemical property of molybdenum delay composition.

通过对钼系延期药各组分的性质的分析研究，从理论上探讨其异核结晶的结晶机理。

The molybdenum delay composition was prepared by two methods -heteronuclear crystalline by decreased the liquid temperature or on common, and the mechanism of heteronuclear crystalline was discussed.

内容如下：本文选择了钼系延期药作为研究对象。采用手工混制和降温析出两种方法制备了钼系延期药，并从理论上阐述了降温析出异核结晶的原理。

There were also many crystalline foods that sustained crystalline biology in the era of Lemuria.

也有在利莫里亚时代支持水晶生物的许多水晶食物。

The crystallines in the co-crystalline zeolites do not show physical mixture but inlayed each other. The pore size distribution of the co-crystalline zeolites is distinct from those of ZSM-5 and mordenite.

对于混晶分子筛来说合成的混晶分子筛中两种晶相不是呈纯粹的物理混合状态，而是相互镶嵌在一起。

One simple and five composite structures of liquid-crystalline polymers in nonhomogenous shear flow are predicted by studying the influences of Deborah number on microstructures of liquid-crystalline polymers in Plane Poiseuille flow.

首次细致地研究了Deborah数对平板Poiseuille流中液晶聚合物微观结构的影响，预测出非均匀剪切流场中液晶聚合物的一种单一结构和五种复合结构。

The results showed that PPC was a thermotropic liquid crystal and displayed the cholesteric banded texture. The reaction conditions had the distinct effects on the propoxy content and liquid crystal property of PPC, with the reaction temperature and content of propionyl chloride increased, the degree of substitution of propoxy increased at the beginning, then trended to steady. The transition temperature and range of liquid crystalline phase were changed with the DS of propoxy, as the DS of propoxy increased, the melt point decreased, and the liquid crystalline phase transition temperature range of PPC get wider.

结果表明，产物PPC具有明显的热致液晶性能，且呈现出胆甾型液晶的彩色条纹织构；反应条件对产物丙酰基含量和液晶性能有显著影响，随反应温度提高和丙酰氯用量增加，产物丙酰基的取代度先增大，后趋于稳定；其相转变温度和温域随丙酰基取代度改变而相应变化，随丙酰基的取代度增大，产物的熔点降低，液晶温度范围变宽。

The results show that the SAPO–5 has a pillar-like morphology with the size of about 20 μm×5 μm×5 μm.The ratio of P:Al:Si is 1:1.19:0.67 in its crystal structure, the content of Si is high. The total acidimety fo the SAPO–5 is 578.0 μmol/g , hihger than that of prepared by one step crystalline hydrothermal method.And its initial catalysis character performance on normal butane isomerization reaction reach 24.8 %, higher than that of prepared by one step crystalline hydrothermal method.

实验结果表明：产物为柱状的磷酸硅铝分子筛，其晶粒尺寸大约为20 μm×5 μm×5 μm，其晶体结构中P：Al：Si＝1：1.19：0.67，硅含量较高；采用分段晶化方式制备的SAPO-5分子筛的总酸量为578.0 μmol/g高于一段晶化方式制备的SAPO-5分子筛的总酸量；采用分段晶化生成的SAPO-5分子筛的催化正丁烷异构化反应初始活性可达到24.8 %，远高于一段晶化制备的SAPO-5分子筛的初始活性14.1 %。

Study on Crystalline and Properties of N',N-Bis-3,4,9,10-Perylene Tetracarboxylic Diimide;2. The effects of the crystalline of the titania nanotube were studied by the means of TEM and XRD etc.

用不同TiO2作原料，在一般水热法和微波法条件下，制备TiO2纳米管，通过TEM、XRD等表征手段，研究了影响合成TiO2纳米管晶型的因素，提出了影响纳米管晶型结构的机理。

The crystalline phase, morphology, crystalline size and specific surface area were tokened by using thermogravimetric analysis and diferential thermalanalysis, X-ray difraction, transmission electron microscopy, infrared spectroscopy and BET.

同时运用热重/差热、X射线衍射、透射电镜、比表面吸附、红外等多种测试手段对Cu2+/TiO2光催化剂的晶型、粒子形貌、比表面积进行了表征。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。