衍射线

The phase change of TiO_2 xerogel during annealing was studied by X-ray diffiaction and thermogravimetry-differential scanning calorimetry.

应用X射线衍射和热重-差式扫描量热研究了TiO_2凝胶在热处理过程中的物相变化。

Mesoporous zincum sulfide is synthesized by gentle wet chemosynthesis method, with DDA as templates and Zinc acetate and TAA as precursors. The effect to the synthesis of the ratio of reactive components, the volume of pH, reactive time and reactive temperature has been dicussed systematically, and structures of the as-synthesized samples have been characterized by X-ray diffraction, N2 adsorption-desorption, scanning electron microscopy, Fourier transform-infrared spectra, UV-vis diffuse reflectance spectroscopy, transmission electron microscopy.

以十二胺为模板，醋酸锌及硫代乙酰胺为前驱体，温和湿化学法合成了硫化锌无序介孔结构，系统研究了反应物配比、pH值、反应温度、反应时间对材料合成的影响，运用X射线衍射、N2吸附-脱附、扫描电镜、红外光谱、紫外-可见吸收光谱、透射电镜等分析手段对介孔材料的结构进行了详细的表征。

Carboxymethyl starch was prepared from cornstarch by using a dry method,and the molecular structure,granule configuration and crystallizability of the carboxymethyl starches with different substitution degree were investigated by using ultrared spectrograph,electro scanning microscope and x-ray crystallograph.

张慧，董海洲，侯汉学，刘传富，干法羧甲基化反应对玉米淀粉颗粒性质影响的研究以玉米淀粉为原料，干法制备羧甲基淀粉，并利用红外光谱仪、扫描电子显微镜和X-射线衍射仪对不同取代度的羧甲基淀粉的分子结构、颗粒形貌及结晶性进行了研究。

Progress in researches on catalysts for fluidized bed oxychlorination of ethylene to make dichloroethane;2. The catalytic performance of CuCl2-KCl/MgO-Al2O3 catalysts was evaluated for the oxychlorination of ethane to produce vinyl chlorid.

采用浸渍法制备了不同含量MgO改性的γ-Al2O3，采用X射线衍射、N2物理吸附、NH3的程序升温脱附和程序升温还原等手段表征了催化剂的结构、表面酸性和氧化还原性质，并对CuCl2-KCl/MgO-Al2O3催化剂催化乙烷氧氯化制氯乙烯反应进行了活性评价。

The second exotherm could be ascribed to the relatively compactconformation of individual polystyrene chains; upon heating during DSC scan, phenylring could stack to form some kind of ordered regions inside micro-PS.

而广角X射线衍射以及in situ FTIR等研究证明第二个放热峰则归因于micro-PS特殊的链构象：DSC升温过程中链的疏松构象易于通过苯环的堆积形成局部链段有序化，从而放出热量(大约6.4 J／g)。

The broadening of XRD peaks, the blueshift of interband optical absorption edge and the change of Raman scattering spectra were observed.

利用X。射线衍射、UV-VIS吸收光谱和拉曼光谱对复合材料中的ZnSe纳米粒子进行了光谱表征。

Through chemical analysis and X radiation diffraction, the composition of the synthetic powder is obtained. In the synthetic powder, there are crystal NaCl and noncrystal Fe〓O〓 and BaCO〓.

通过化学分析和X射线衍射的检测，得出了合成料粉中所含成分及其存在状态，除了助熔剂氯化钠以晶态存在外，其它均是非晶态物质。

The difference between warm compaction and cold compaction of pure iron powders without admixed lubricant was compared with an Instron thermal simulater.

在Instron热模拟机上对不添加润滑剂的纯铁粉进行温压和冷压的实验比较，用扫描电镜、X射线衍射和金相显微镜对粉末及其压坯进行分析，并对纯铁粉的温压致密化机理进行探讨。

In the EPR spectra of montmorillonite adsorbing CU,there are three signals relating With Cu.

对在pH≤4.5、痕量浓度条件下吸附了Cu的蒙脱石的x射线衍射进行了研究。

The mechanically alloyed powders were characterized by X-ray diffraction and differential thermal analysis.

采用X射线衍射仪和差热分析仪研究了Mo-67 at%Si元素混合粉末在中等强度的机械研磨过程中的结构变化过程。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。