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Five of their single crystals were obtained and their structures were determined by X-ray diffraction. By comparison, it was found that dithiocabamate complexes often formed an exactly planar MS4 unit, such as [Mo(R2dtc)2]; and also formed a special MS 5 unit, such as [Cu2(R2dtc)4], the copper atom lies in a distorted square-pyramidal environment.Four kinds of heteropoly acids were prepared and characterized; a series of solid superacid catalyst of supported heteropoly acid were prepared and characterized; regioselectivites of chlorobenzene mononitration with nitric acid with different heteropoly acid on different supports and reaction conditions have been investigated.

培养并解析了5个该类配合物的单晶结构，通过比较，发现二硫代氨基甲酸盐与过渡金属容易形成四配位结构，金属原子与4个硫原子共平面，比如二乙基二硫代氨基甲酸钼；也能形成比较特殊的五配位结构，比如二乙基二硫代氨基甲酸双核铜，Cu原子与5个S原子相连，处于一个变形的四方锥结构的配位环境。

By means of X-ray diffraction,scanning electron microscope research and analysis of the chemical composition of micro zone,the authors investigated the zeolite ores of zeolite deposits in Huzhen Basin and determined the main mineral composition of zeolite ores,which are made up of clinoptilolite and mordenite .

运用X射线衍射、扫描电镜形貌研究及微区化学成分分析等手段，对浙江省缙云县壶镇盆地及其外围沸石矿床沸石进行系统研究，确定其矿物组成主要为斜发沸石和丝光沸石，二者可单独产出，也可形成混合型矿石。

The influence of Zr/Ti on the mechanical and electrical properties ,phase composition,lattice constant of lead niobium stibium zirconate titanatePb(Nb1/2Sb1/2TiO3-PbTiO3-PbZrO3 (Nb1/2Sb1/2=0.02mol piezoelectric ceramics ,in which there are tetragonal and rhombohedral phases coexistent (morphotropic phase boundary,MPB),was studied by conventional containing lead piezoelectric ceramic processing and X-ray diffraction.

借助X-射线衍射仪，采用传统含铅压电陶瓷制备工艺研究了Zr/Ti对准同型相界附近铌锑锆钛酸铅（Pb(Nb1/2Sb1/2)TiO3-PbTiO3-PbZrO3）(Nb1/2Sb1/2=0.02mol压电陶瓷机电性能、相组成和晶格常数的影响。

In the paper, the multidentate carboxylic acid ligands were used to combine with Cd, resulting in the three dimensional MOCPs single crystals—C12H16CdN2O8, with a low temperature hydrothermal synthesis method. The sample was characterized with IR spectra to affirm the organic groups in the frameworks, single-crystal X-ray diffraction to determine the crystal structure and composition of the frameworks, N2 adsorption isotherms at low temperature to measure the specific surface area and pore size distribution, and with TGA/DGA analysis to scale the thermal stability. Furthermore, the dissolution property and the photocatalytic activity of MOCPs under the ultraviolet ray condition were explored.

本文用低温水热合成法，用多齿羧酸配体异烟酸和Cd配位合成出[Cd(C6H4O2N)2(H2O)4]∞三维晶体并进行了表征：采用红外光谱法确认骨架中的有机官能团；用单晶X射线衍射分析法测定MOCPs的晶体结构，并确定其骨架的组成；通过低温氮气吸附等温线测定了其比表面积和孔径分布；以热重分析和差热分析测定材料骨架的热稳定性；测定了晶体的溶解性能；最后以亚甲基蓝为目标降解物，对[Cd(C6H4O2N)2(H2O)4]∞的光催化活性及亚甲基蓝的氧化动力学进行了探索(来源：A2444BC论文网www.abclunwen.com)。

The study of combined refraction and diffraction of multidirectional waves are investigated by an extensive 3-D model test and the numerical simulation.

采用模型试验和数模计算相结合的方法，研究了多向不规则波的折射-绕射联合作用。

Etched-Diffraction-Grating is a kind of MUX/DEMUX with compact structure, good performance, and high reliability.

刻蚀光栅式分波合波器具有结构紧凑、可靠性高、成本低等优点。

To obtain large single crystal of ΔnifE Av1 suitable for X-ray diffraction, a body of studies were performed on the crystallization conditions such as kinds and concentrations of precipitants, pH value of buffer, diffusion method and protein batch.

为获得可供X-射线衍射的ΔnifE Av1的大单晶，对组成蛋白质沉淀剂的各种化合物的种类和浓度、缓冲液的pH值、结晶方法及蛋白样品的批次、浓度等结晶条件进行了大量优化研究。

To obtain large single crystal of △nifE Avl suitable for X-ray diffraction, a body of studies were performed on the crystallization conditions such as kinds and concentrations of precipitants, pH value of buffer, diffusion method and protein batch.

为获得可供X-射线衍射的△nifE Avl的大单晶，对组成蛋白质沉淀剂的各种化合物的种类和浓度、缓冲液的pH值、结晶方法及蛋白样品的批次、浓度等结晶条件进行了大量优化研究。

The nitrogenation process, reaction details under different nitrogenation conditions and the magnetic properties of products are also studied by using the differential thermal analysis, X-ray diffraction spectra, M〓ssbauer effect and vibrating sample magnetometer.

用DTA、X-射线结构分析、穆斯堡尔谱分析等手段研究了不同氮化条件下的氮化规律和反应细节。

Single-crystal X-ray diffraction analysis of 3, 3'-BTDA and 3, 4'-BTDA showed that they both have bent and noncoplanar structures.

发现螺双内酯在乙酸酐中回流可以直接有效地转化成二酐3，3'-BTDA，并提出了转化机制。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。