前驱

CdS nanoarods have been synthesized by using Cetyltrimethyl Ammonium Bromide as the soft template under γ-irradiation through the reaction of cadmium sulphide (CdSO4·8/3H2O) and thiacetamide in acidic condition for pH value of 3. The physical and chemical properties and the structure of CdS nanorods were characterized by XRD, UV-Vis, SAED, TEM and PL.

在pH=3的酸性条件下，以硫酸镉和硫代乙酰胺为反应前驱体，采用十六烷基三甲基溴化铵自组装形成的管状胶束为模板，通过γ射线辐照法成功合成了CdS纳米棒，并通过XRD、UV-Vis、SAED、TEM和PL等技术对反应中间产物及最终产物进行了表征。

Three different calcium oxide catalysts were synthesized from different precursors and characterized by X-ray diffraction, scanning electron microscopy, and temperature-programmed desorption.

用不同的前驱物合成了三种CaO催化剂，并以X射线衍射、扫描电子显微镜、程序升温脱附等方法加以表征。

In this paper, straight carbon fibers have been obtained using copper tartrate catalyst precursor at 200 oC.

在本文中，利用酒石酸铜催化剂前驱体在200 oC的温度下，制备得到了直线型碳纤维。

Carbonaceous mesophase is an excellent precursor for carbon materials, especially those with high additional value.

炭质中间相是制备炭材料，尤其是高附加值炭材料的优质前驱体。

Through the analysis of crystal structure and phase compositions, it was concluded that the precursor carburization and substrate temperature are the most important parameters to get nanostructure tungsten carbide thin films.

通过分析影响薄膜的晶体结构、化学组成的因素后，认为要得到具有纳米晶结构的碳化钨薄膜，主要应控制前驱体气体中的碳钨比以及基底温度。

The influence of double carburization upon the microstructure of WC powder is investigated by adopting of different tungsten oxides.

通过对不同氧化钨前驱氧化物的采用，研究两步碳化法对 WC粉末微观结构的影响，在国内首次探讨 WC粉末中生长孪晶的形成机制及其结构特点，阐述生长孪晶对硬质合金性能的影响。

Subsequently,γ-MnO2 was attained by Manganese carbonate heated at 500 Celsius temperature scale.

低温固相反应合成热分解前驱体MnCO3，500℃热处理得到γ-MnO2。

The preparation process includes the following steps: dissolving activator and RE oxide in the molar ratio of 0.01-0.02 in concentrated nitric acid and heating to dry, dissolving the obtain RE nitrate in deionized water to obtain solution of RE nitrate; dissolving soluble tungstate and surfactant in deionized water to obtain tungstate solution; mixing the RE nitrate solution and the tungstate solution through stirring to reaction for 25-60 min to obtain white precipitate; hydrothermal reaction of the precipitate in a reaction kettle at 100-260 deg.c for 24-72 hr; centrifugally separating, washing and drying to obtain the product.

浓硝酸的加入量保证稀土氧化物溶解就可以，过量的硝酸可以加热除去；将可溶性钨酸盐和表面活性剂溶解于去离子水中，得到钨酸盐溶液，表面活剂性的加入量为反应原料重量的0-30wt％；将稀土硝酸盐溶液加入到钨酸盐溶液中搅拌，发生沉淀反应，磁力搅拌时间为25-60分钟，得到白色沉淀；将含有沉淀物的溶液作为前驱物加入到反应釜中，发生水热反应，反应温度为100-260℃，反应时间为24～72小时；离心分离，洗涤，干燥，即得所需产物。

The effect of crystallization process from polymers, control laws of particles from the long-chain structure of polymer, as well as the self-assembly regulatory mechanism of nano-particles from polymer are investigated , through the control of its morphology and properties of precursor order to get large aperture, high specific surface area, has good thermal stability and catalytic cerium oxide particles.

研究聚合物对结晶过程的影响、聚合物的长链结构对粒子自组装的控制规律以及聚合物对纳米粒子自组装的调控机理，通过控制其前驱体的形貌和性能，以期得到大孔径、高比表面积、具有良好的热稳定性及催化作用的氧化铈颗粒。

The precursors of Mo-Cu composite powders were prepared by chemical co-precipitation using ammonium molybdenum and chalcanthite.

以钼酸铵和五水硫酸铜为原料，用化学共沉淀法制备钼铜复合粉前驱体。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。