查询词典 characterization

The characterization of rare earth compound powders,such as rare earth hydroxides,rare earth carbonates,rare earth oxalates and rare earth oxides,are important to the synthesis of rare earth new materials.

稀土粉体(氢氧化稀土、稀土碳酸盐、稀土草酸盐、稀土氧化物和氟化物等)的颗粒性能方面的指标对稀土新材料的开发具有重要意义。

Synthesis and characterization of Octa polyhedral oligomeric silsesquioxanes and Poly and their polystyrene composites enhanced combustion properties.

使用正硅酸乙酯和四甲基氢氧化铵，采用水解缩合的方法制备笼型八八硅酸盐，将其作为聚苯乙烯树脂的添加剂，采用熔融共混的方法制备了TMN-POSS／PS复合材料。

Chapter two is concerned with the syntheses and characterization of some chiral ligands and consists of relevant mechanism of reaction( for example, N anion acts as nucleophilic reagent and different nitriles act as reacting substance).

第二章讨论了若干手性配体的合成与结构，并包含了相关反应的机理探讨(例如N~-做为亲核试剂、不同的腈作为反应底物)。

As above mentioned, it could be improved the optics characterization of films efficiently by textured aluminium doped zinc oxide films by wet etching. Using solar cells as transparent electrode enables the light passed through solar cells and reduceds reflectance to permeate into absorb layer of solar cells and improve conversion efficiencies of solar cells.

由上述的光学性质变化中可得知，经由湿式蚀刻过程后的氧化锌掺铝薄膜确实能有效改善薄膜的光学特性，对於应用於太阳电池中当透明电极使用时，能使更多入射光通过元件表面而进入吸收层内，帮助提升太阳电池的转换效率。

Characterization,antigenic structure analysis of Chinese wheat mosaic virus,a new specie of genus Furovirus and expression of its RNA2 genes in E.coli

中文题名 Furovirus属新成员：中国小麦花叶病毒的鉴定，抗原结构分析及RNA2相关基因的原核表达

All the experimental operations were carried out under the conditions of water-free and oxygen-free in nitrogen stream. The synthesis and characterization of novel enantiopure {[2Na]3[Sm3]}(1) and {[2Na]3[Gd3]}(2) were described.

在无水无氧条件下，以氯化钐、氯化钆和R-联萘酚为原料室温合成了手性联萘酚稀土配合物{[2Na]3[Sm3]}(1)和{[2Na]3[Gd3]}(2)，对所合成的配合物进行了荧光性能研究。

Impact experiment equipment was used to study the dynamic mechanical properties and characterization method of a new kind of damping aluminum alloy under impact load.

采用冲击实验装置研究了新型阻尼铝合金材料在冲击载荷作用下的动态力学性能及表征方法。

Rapidly solidified AZ91 magnesium alloy powders and the Mg-based composite material reinforced by SiC particles were produced by twin-roller atomization method and powder metallurgy, respectively. The microstructure, phase compositions and interface characterization between Mg matrix and reinforcing particles of AZ91/SiCp composite material were investigated.

摘 要：采用双辊雾化法制备快速凝固AZ91镁合金粉末，并用粉末冶金方法制备SiC颗粒增强的镁基复合材料棒材，研究AZ91/SiCp复合材料的微观组织、相组成及增强相与合金基体间的界面结构特点。

A novel anion exchange membrane with chitosan and quaternized chitosan has been prepared and the primary structure characterization has been performed by FTIR. The influence of various chitosan/quaternized chitosan compositions and the amounts of glutaraldehyde on properties of ion exchange membranes was discussed. The ion transference number and the selective permeability have been estimate by testing membrane potential method.

制备了一种新型阴离子交换膜－壳聚糖／壳聚糖季铵盐交联共混膜，并用FTIR对共混膜进行了初步表征；分析研究了不同交联度及配比对离子交换膜相关性能的影响；并运用测试膜电位的方法估算了离子的迁移数和选择透过度。

The characterization results showed that the calcined sample in 300 ℃ was spongy structure tin dioxide with meso-porosity which was formed by accumulating nanoparticles (particle size: ca 5 nm).

结果表明，300℃焙烧处理后的样品由粒径约为5 nm的纳米粒子堆积而形成海绵状结构，其中孔的尺寸范围在2-8 nm，样品比表面积达到了134 m2·g-1。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。