查询词典 diffraction

A bright spot on the parhelic circle; caused by diffraction by ice crystals.

出现在太阳旁边的一个常常形成光亮的环的明亮光斑；是由于冰晶衍射造成的。

The structure of the polymer was preliminarily studied by FT-IR, 1H-NMR, UV. The crystallization behaviour and thermal property of the polymer were also studied by X-ray diffraction and DSC, TG. The results shows that the polymer is the structure of PASI.

通过红外、核磁、紫外对聚合物的结构进行了初步表征，通过DSC、TG初步测试了聚合物的热性能，通过X射线衍射初步表征了聚合物的结晶性。

The X-ray diffraction shows that the resin is crystalline. The heat analysis shows that the resin is well heat-resistant and has very good thermal stability and T=101℃. The T is better 10℃ than polyphenylene sulfide. The PASI resin will be applied abraod.

表征结果表明，聚合物为设计聚芳硫醚酰亚胺结构；X射线衍射表明聚合物为结晶性聚合物；热性能测试表明，聚合物的玻璃化温度为101.91℃，高于聚苯硫醚(87.00℃)，聚合物具有良好的热性能。

The analysis of X-ray diffraction and scanning electron microscope energy dispersion spectra show that the primary hydrolysis products of antimony pentachloride and its hydrochloric acid solution are amorphous antimony oxide rather than SbO2Cl.

X射线衍射和扫描电镜能谱分析表明：五氯化锑及其盐酸溶液的初始水解产物不是SbO2Cl，而是一种非晶态锑氧化合物；随着水解母液酸度的降低，五氯化锑溶液水解产物陈化五天后的晶型由非晶态向晶态变化；五氯化锑溶液水解产物经无水乙醇洗涤后水解产物仍为非晶态，而经蒸馏水洗涤虽主要为非晶态，但有少部分结晶的Sb2O5·4H2O晶体存在。

Hexachlorocyclophosphazene was prepared using phosphorous pentachloride and ammonium chloride as raw material, hccp was mixed with Montmorillonite which aimed to decrease MMT.'s hydrophilicity. Solid state reserve cell of Mg│reformed MMT.│polymer gel containing water│graphite was assembled, and cell performance was tested. XRD and IR results show: When mass percentage lower than 9.1%, hccp mixed with MMT to form homophase, hccp phase was observed in the mixture when percentage higher than 9.1%, for hccp specific diffraction peak appears in XRD data, and 1220cm-1 which was assigned to P=N double bond 's expand vibration appears in IR data.

合成了六氯环三磷腈，并用六氯环三磷腈与蒙脱石混合对其改性，期望能减小蒙脱石的吸水性能；组装电池Mg |改性蒙脱石|含水凝胶|石墨片，并测试电池的性能。X射线粉末衍射数据和红外光谱数据表明：蒙脱石容纳六氯环三磷腈的质量分数在4.8%-9.1%之间，可与蒙脱石形成单一物相，但混合质量分数大于9.1%时，改性蒙脱石出现六氯环三磷腈的特征衍射峰，和1220 cm-1的六氯环三磷腈P=N双键的特征伸缩振动峰，证明为蒙脱石与六氯环三磷腈的两相混合。

The properties of single chain and pauci chain polystyrene microspheres and recent results on the electron microscopy and selected area electron diffraction of single chain monocrystals of polyethylene oxide, isotactic polystyrene, cis1,4 polybutadiene and gutta percha are presented and discussed.

介绍和讨论了单链和寡链聚苯乙烯玻璃体微球的性质以及聚环氧乙烷、同立构聚苯乙烯、－，4－丁二稀、－，4－异戊二烯单链单晶电子显微镜和选区电子衍射观察的最新结果。

The scale inhibition mechanism of PESA was proposed on the basis of characterization of transformation of calcium carbonate crystal by means of X-ray Diffraction and scanning electron microscopy. The effect of temperature on corrosion inhibition efficiency of PESA was investigated and the Bockris substitution model is proposed to study the thermodynamics of inhibiting process of PESA. The calculation results show the adsorption of PESA on carbon steel is a spontaneous exothermic process with the increase of entropy.

通过X射线衍射和扫描电镜分析手段研究了聚环氧琥珀酸加入前后碳酸钙垢晶型的变化，在此基础上探讨了聚环氧琥珀酸的阻垢机理；考察了温度对聚环氧琥珀酸缓蚀性能的影响，根据Bockris置换模型，计算出中性水质中聚环氧琥珀酸在碳钢表面吸附的热力学函数，计算结果表明：聚环氧琥珀酸在碳钢表面的吸附是一个放热、熵增、自动发生的过程。

The study performed by the authors is of significance in finding favorable reservoir zones in Dongying depression. Many thin sections were analyzed by such means as standard petrographic microscope, X-ray diffraction and scanning electron microscope analysis so as to study the selected samples.

在对大量薄片和岩心进行分析的基础上，运用扫描电镜和X衍射粘土分析等手段，对东营凹陷砂岩储层的成岩作用和孔隙演化进行了研究。

In this research, two novel compounds in which alkylenedithiomethylene Malonic acid act as the main coordination agents and the compounds containing N atom (such as pyridine, Phenanthroline Ethanediamine and 4,4'-Bipyridinyl) act as the associating coordination agents have been synthesized by the means of solution and solid-liquid diffusing reactions. 9 coordination complexes and polymers have been designed and synthesized in which the transition metals Cu and Zn acted as the centre ions. These compounds have been characterized by X-ray single crystal diffraction analysis, and some properties of them have been tested and analyzed.

本论文设计合成了两种结构新颖的含有二硫缩烯酮结构的丙二酸类化合物，以此为主要配体，以含氮化合物(吡啶、邻菲罗啉、乙二胺和4，4'-联吡啶)为辅助配体，采用常规溶液合成和固-液相扩散等方法，设计合成了9个过渡金属Cu和Zn离子配合物和配位聚合物，采用单晶X-射线衍射等技术对晶体结构表征，并对其部分性质进行了测试和分析。

Phosphotungstic acid catalysts supported on ceria with various PW loadings were prepared by the impregnation method , and characterized by X- ray diffraction, acid strength and nitrogen adsorption techniques.

以CeO2为载体，用浸渍法制备了不同负载量的磷钨酸催化剂，并且考察了催化剂光催化脱色甲基橙溶液的催化性能。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。