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The environment and human beings were polluted seriously by benzene and high dust in traditional pesticide formulation such as Emulsifiable Concentrate,Wettable Powders and Powders.

传统的农药剂型乳油、可湿性粉剂、粉剂，因剂型含有苯类及粉尘，可对环境和人员造成严重的污染和危害。

When the amount of hydrochloric acid added in hydrolysis process of aluminum ethoxide was relatively high, the formed AlCl〓 could enhance the self-pulverization of fibrillar γ-AlOOH powders during its dehydration process and lead to the formation of amorphous ultrafine alumina powders with the particle size of 3～5nm, which could melt and become glass like at 500℃, and then become spherical by crystallization.

当盐酸与乙醇铝的摩尔比从0.0增加到0.04时，粉末成球温度从1200℃降到500℃；在高酸量时形成的AlCl〓，能促进γ—AlOOH脱水时的自粉碎效应，生成无定形的超细Al〓O〓粉末，粒径为3~5nm，在500℃经熔化形成玻璃态，再晶化成球，而在其它情况下，粉末靠收缩经表面扩散方式成球。

The milled powders with either ethanol or stearic acid as PCA remain a solid solution structure eyen after 12h milling, but both transform to FeAl (B2) intermetallic after subsequent vacuum annealing at 1100℃, during which more Al2O3 is formed in the ethanol milled powders.

两种粉末经12h球磨后，仍保持固溶体结构；经1100℃真空热处理后，两者均可转变为FeAl(B2)金属间化合物，但无水乙醇作PCA的球磨粉末中Al2O3生成量相对较多。

In the dehydrogenation process of HD process, the temperature set at 580℃ and pressure set at 100Pa is a perfect parameter, it can make the magnet to have high magnetic performance. In the HDDR process experiment, the paper contrast four HDDR process such as C-HDDR V-HDDR V-HD-S-DR and d-HDDR by the anisotropy and magnetic performance of ternary NdFeB magnetic material. The results show that adjusting the parameter of the d-HDDR process can make the anisotropy and magnetic performance of ternary NdFeB magnetic powders to catch up with the hexahydric NdFeBCoZrGa magnetic powders. At the end the paper discusses the betterment of the equipment which produces ternary NdFeB magnetic with the d-HDDR process.

和580℃的脱氢温度相搭配的脱氢气压选择在100Pa左右是理想的工艺参数，这样的搭配使得最终烧结磁体综合磁性能优异；在HDDR制粉工艺实验中，本文对比了C-HDDR、V-HDDR、V-HD-S-DR和d-HDDR四种HDDR工艺对于三元NdFeB合金各向异性和磁性能的影响，得出结论：通过发展d-HDDR工艺，调整工艺参数和控制水平，可以使三元NdFeB合金磁粉的性能达到或接近六元NdFeBCoZrGa合金磁粉的水平，在文章末尾，还对配合使用d-HDDR工艺设备的改造进行了分析。

Investigating the influences of processing parameters on the C/Si molar ratio of resulted nanosized SiC powders indicated that there was a direct pyrolytic reaction from DMS to SiC as well as the previous proposed two-step reaction. Under the optimized processing conditions, the silicon carbide powders of homogeneous particle size distribution, spherical shape and stoichiometrical C/Si molar ratio are obtained. The silicon carbide particle consists of β-SiC crystallite arranged randomly.

论文系统研究了工艺条件对产物粉体C／Si摩尔比、粉体颗粒尺寸和组成粉体的SiC微晶尺寸的影响；研究了粉体制备过程中可能发生的化学反应，提出了反应过程中除了分步进行的生成SiC的反应外，同时在高温区还存在一步完成的生成SiC的化学反应的观点；通过调整工艺参数，制备得到了粉体尺寸分布均匀、呈均匀球状、C／Si摩尔比符合化学计量比的颗粒尺寸为40nm的纳米SiC粉体。

The powder baked at 680C is perfect in properties, and zinc oxide will decompose when the reduction temperature exceeds 700 C,Results of XRD, SEM and TEM for the targets indicate that secondary phase ZnAl2O4 exists in the targets synthesized with reduced or unreduced compound powders, but not in the target synthesized with nanometer powders.

各靶材样品的XRD、SEM和TEM分析结果表明：以还原和未还原ZAO粉为原料的靶材组织中出现了第二相组织：ZnAl_2O_4，而以纳米ZnO、Al_2O_3粉为原料的靶材组织中未见第二相。

The morphology, structure and composition of binary xerogel powders and aerogel powders were characterized by FT-IR, TEM, XRD and nitrogen adsorption.

并采用氮吸附、FT-IR、TEM 和XRD等测试手段对所制得的干凝胶和气凝胶粉末的BET表面积、表面形貌、结构和组成进行了表征。

In this paper, a number of procedures were designed for studying the mechanism of forming hard agglomerates of Z〓O〓 powders, and the properties of resulting powders were investigated extensively.

研究超细粉末团聚体的形成机理、寻找控制粉末团聚状态的工艺方法是〓性能陶瓷制备理论与技术的焦点，是个十分重要的研究课题。

The purpose of this thesis is to study the characteristics of glass transition experimentally with several typical amorphous starch powders, and try to find the way and the method to prevent them from caking by changing Tg of the powders.

本文的主要目的是通过对几种典型非晶态高分子淀粉粉体的玻璃化转变特性进行实验研究，寻求通过改变粉体的玻璃化转变温度来防止发生结块的途径和方法。

Compared with solid method, particles are fine and smooth. The conglomerated powders are easily dispersed, and most of powders changed to LuAG phase after heating at 1200℃.

而采用液相沉淀法制备出的粉体颗粒较光滑，团聚后的粉体也易于分散，在经1200℃煅烧后基本上全部转化为LuAG。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。