衍射线

Based on these researchesand trends of academic develop as well as the industrial need, guanidine compoundscontaining quinolinyl and fluorine atom have been designed.

单晶的 X-射线衍射分析是现代化学研究中重要的技术手段之一，能从原子水平上研究化学物质微观结构和相互作用。

The intrinsic viscosity and the radius of gyration of polymers were studied in this paper,and t.

通过红外光谱分析、热分析、X射线衍射分析对接枝共聚物结构进行了验证，并对接枝共聚物特性黏数和大分子回旋半径进行了研究。

The phase structure,phase compositions,micro-structure characteristic and elements distribution of the Al203-MxOy hard-faced ceramic coating were analyzed by using large-field optical microscope and X-ray diffraction and electric probe .

通过采用大型金相显微镜、x-射线衍射仪、电子探针等设备分析了陶瓷涂层的相结构、相组成、组织特征以及陶瓷涂层中各元素的分布情况。

The influence of mechanical activation on the crystal structure and leaching behavior of hemimorphite was investigated by SEM, particle distribution analysis, TG-DSC analysis and XRD analysis.

通过浸出动力学实验、扫描电镜分析、粒度分析、热重－差热分析、X射线衍射分析探讨机械活化对异极矿晶体结构和浸出行为影响的规律。

The luminescent property of these materials was relative to the twisted angle between two benzene rings of the bridged biphenyl. The crystal structures of a series of seven-member heterocycle bridged biphenyls were determined by X-ray diffraction.

利用X射线单晶衍射仪确定了系列功能的七元杂环桥联联苯化合物的晶体结构，比较了桥联原子，6，6位取代基及分子间弱氢键对这类桥联联苯扭曲构象的影响。

Analysis data indicates that most of Ti belong to hexad cubic system of α-Ti changes to cubic system of β-TiD2, and the existance of new elements in electrolytic products is determined.

对电解产物的X射线衍射分析肯定了电解前属六方晶系的α-Ti大部分转变成立方晶系的份β-TiD2，并检测到了新的元素成份。

Surface modified nano-sized mgnesium hydroxide was prepared by direct precipitation method with magnesium nitrate hexahydrate and sodium hydroxide as raw materials,and sodium fatty alcohol polyoxyethylene ether carboxylate as modifying agent.The optimum dosage of modifying agent was 0.2% of the mass of magnesium hydroxide,which was confirmed by sediment volume experiment.Modified and unmodified samples were characterized by fourier transform infrared spectroscopy,X-ray diffraction,transmission electron microscope,and tap density test.

以六水硝酸镁、氢氧化钠为原料，脂肪醇聚氧乙烯醚羧酸钠为改性剂，采用直接沉淀法一步合成改性纳米氢氧化镁，用沉降体积实验确定改性剂的最佳用量为氢氧化镁质量的0.2%，通过红外光谱、X射线衍射、透射电镜、表观密度对改性前后的样品进行表征。

The ordered mesoporous material MCM-41 was synthesized by a hydrothermal method using fumed silica,sodium hydroxide/tetraethyl ammonium hydroxide/hydrogen chlorideand cetyl trimethl ammonium bromide.

用X射线衍射、氮气吸附-脱附等手段对比分析了合成的3种MCM-41介孔材料的物相、比表面积、孔径、孔体积等，发现酸性介质中合成的介孔材料的孔径最大。

The results of XRD (X-ray diffraction), SEM show that the Al-Cu-Fe quasicrystalline coating is dense and uniform, by preparing from Al70Cu20Fe10 powders with particle size of 325 mesh (4.5μm). After annealing under vacuum condition of 800℃ for 2 hours, it is observed that the icosahedron phase is the major phase together with a few β-Al phase.

由X-射线衍射XRD(X-Ray Diffraction)、扫描电镜SEM分析得出：采用原子比为A170Cu20Fe10、粒度为-325目的粉末制备的涂层，在800℃下真空退火处理2h后，结构均匀致密，二十面体准晶相含量高，并只含有少量的β相。

The results obtained by XRD show that the as-cast and quenched alloys have a multiphase structure, including theNi3 phase, LaNi5 phase and LaNi2 phase. The substitution of Al for Ni increases the amount of LaNi2 phase in the as-cast alloys, but it has an inappreciable influence on the abundance of the LaNi2 phase in the as-quenched alloy.

X射线衍射分析结果表明：铸态及快淬态合金具有多相结构，包括Ni3相、 LaNi5相和一定量的LaNi2相； Al替代使铸态合金中LaNi2相的量显著增加，但对快淬态合金中LaNi2相的相丰度影响不显著。

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。