衍射线

Using manganous sulfate(MnSO4) as raw material,ammonium hydrogen carbonate(NH4HCO3) as precipitating agent and sodium dodecyl sulfate as particle size controller and through the process of quick addition of MnSO4 and NH4HCO3 solutions at same time,monodisperse submicron manganous carbonate(MnCO3) spherical particles were prepared by controlling suitable reaction crystallization conditions.

以硫酸锰为锰源，碳酸氢铵为沉淀剂，十二烷基硫酸钠为粒径控制剂，采用硫酸锰和碳酸氢铵两种溶液快速同时加入的方式，通过控制合适的反应结晶条件，制备出亚微米级单分散球形碳酸锰颗粒。借助扫描电镜、X射线衍射、粒度分析仪等研究了反应结晶条件对碳酸锰粒径和形貌的影响。

By means of FTIR,SEM,DSC,TGA and XRD,we studied the microstructure,particle shape,meltage temperature,decomposition temperature and crystal degree,and gained better understanding about influences of different degrees of substitution on microstructure and thermal property of starch acetates.

用傅立叶红外、扫描电镜、差示扫描量热、热失重和X射线衍射测试技术对淀粉醋酸酯的结构、形貌、熔融温度、分解温度和结晶度进行表征，分析了不同取代度对醋酸酯淀粉的热性能及其结晶结构的影响。

H2SO4. By means of FTIR, SEM, DSC, TGA and XRD, we studied the microstructure, particle shape, meltage temperature, decomposition temperature and crystal degree, and gained better understanding about influences of different degrees of substitution on microstructure and thermal property of starch acetates.

用傅立叶红外、扫描电镜、差示扫描量热、热失重和X射线衍射测试技术对淀粉醋酸酯的结构、形貌、熔融温度、分解温度和结晶度进行表征，分析了不同取代度对醋酸酯淀粉的热性能及其结晶结构的影响。

And with the X-ray technique, SEM and metallograph experiment, the microstructure in the casting state has also been analyzed.

对熔铸后的铸态组织进行了X射线衍射、扫描电镜和光镜金相分析。

In the thesis, By using x-ray diffraction, energy spectrum analysis, metallographical analysis and scanning electron microscopy and opitimzing technology, the effects of the element Ga was researched and discussed in the magnetic performance and microstructure of Sintered Nd15Fe78B7+Ga permanent magnets made by powder metallurgy.

本文采用粉末冶金方法，通过x射线衍射、能谱分析、金相分析和电子扫描等一系列的检测与分析方法，优化工艺，研究并讨论了添加Ga元素对烧结Nd_(15)Fe_(78)B_7系永磁体磁性能和微观结构的影响。

In this paper, the effects of concentrated H2SO4 on dissolution of metatitanic acid was researched and the prepared powder was characterized by X - ray diffraction and transmission electron microscopy.

研究了浓硫酸对偏钛酸的溶解情况，并用X射线衍射仪和透射电子显微镜对制得的粉体进行表征。

X-ray diffraction, scanning electronic microscope, impedance analyzer and piezoelectric workstation were used to determine the crystal structure, micrographic topography, dielectric, piezoelectric and ferroelectric properties of NKN—based ceramics.

利用X射线衍射分析、扫描电子显微、HP4294A阻抗分析仪、压电工作站等对这三个系列样品的晶体结构、表面形貌、介电性能、压电性能和铁电性能等进行了深入的分析、研究和对比。

Scanning electron microscopy,X-ray diffraction and laser particle size analyzer were used to carry out a micromeasurement of the powder.

采用快速凝固/机械球磨法制备钛合金粉末；并采用扫描电子显微镜、X射线衍射仪和激光粒度分析仪对其进行微观测量。

No entire nitrendipine crystals were observed visually in SEM photos. The results of X-ray diffraction and differential scanning calorimetry analysis indicated that the crystalline form of nitrendipine was highly dispersed in microspheres, so as amorphous state. The drug release rate of microspheres could be controlled with adjusting the ratio of solid dispersion carriers and retarding agents formulated. The agitation speed and temperature of the preparation process have distinct effect on micromeritic properties of microspheres. The release profiles of the microspheres were mainly affected by the stirring rate of paddle, the concentration of SDS and pH of dissolution medium. Cooling speed and time, however, have no evident influence on the drug release rate of the microspheres. The dissolution data showed that the mechanism of drug release from microsphers was mainly diffusion-controlled. The incorporation efficiencies of 3 batches sample were exceed 96. 8％, which implied that the current method was suitable for design sustained-release dosage form for poorly water-soluble drug.

在扫描电子显微镜下观察，在微球内外未发现尼群地平的完整结晶，X-射线粉末衍射和差示扫描量热试验结果也显示，尼群地平已经被高度分散在微球中；微球的释药速度可通过调整处方中固体分散体载体和阻滞剂的比例控制；制备温度和搅拌速度对微球的质量影响较大；溶出仪的搅拌速度，释放介质的浓度和pH对微球的释放有较大的影响；制备过程中的冷却速度和冷却时间对微球的释放行为影响不很明显；方程拟合的结果表明缓释微球的释药行为符合扩散机制；测定三批微球样品的包封率均在96.8％以上，表明该法适合于制备难溶性药物的缓释微球。

The crystal structure and molecular chain behavior of mechanically micronize d corn starch were studied by various methods,such as polarized microscope,X-ray diffraction,DSC method,GPC and LLS.

采用偏光显微镜，X-射线衍射仪，示差扫描量热仪、凝胶过滤色谱以及激光光散射分析技术等测试手段，表征和探讨了超音速气流粉碎微细化处理的玉米淀粉的晶体结构和分子链行为。

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。