覆层

According to the characteristic of silver nanoparticles, their uniform dispersion in reaction media was obtained by surface modification, ultrasonic radiation and the select of emulsion, and then emulsion polymerization system were formed by combination with reactive monomer and initiator. Nano-Ag/Polystyrene core-shell particles were prepared by emulsion polymerization and their microstructure were characterized by TEM, FTIR, XPS, AFM and TG/DTA. The experimental results showed that silver nanoparticles were coated by polymer and the composite particles had typical core/shell structure, and the microlevel combination was realized. Meantime, the form mechanism of nano-Ag/polystyrene core-shell particles was tentatively researched. The conclusion is that the perfect coating was able to obtained by the control of reaction condition.

根据纳米银粒子的特性，借助于表面处理、超声辐照以及乳化剂的选择，使其均匀分散在反应介质中，再与反应单体、引发剂等形成乳液聚合体系；采用乳液聚合方法、包裹聚合方式，制备出纳米银/聚苯乙烯核壳复合粒子，并借助于TEM、FTIR、 XPS、AFM、TG/DTA等分析手段对复合粒子微观结构进行了表征；结果表明：纳米银粒子表面被聚合物层包覆，复合粒子呈明显的核壳结构，实现了微观尺度上的复合；同时，初步探讨了纳米银/聚苯乙烯核壳复合粒子的形成机理，指出：通过控制反应条件，可以使形成纳米银/聚苯乙烯核壳复合粒子的聚合反应方式占主导地位，实现最大限度地包覆。

The semiconductor nanocrystalline surface is modified by using organic overlay method. As an organic overlay,-methacrylic restrains the reuniter between the grains in the latter process. Furthermore, it can combine with empty bond of atom at grain surface state and eliminate the surface state.

应用有机包覆的方法对纳米颗粒进行了表面修饰，作为包覆剂的α-甲基丙烯酸有效抑制了后处理工艺中纳米颗粒间的团聚现象，在纳米颗粒表面形成帽层，并与粒子表面态的原子悬键进行配位，这对消除表面态是非常有益的。

The results show that the coverage area of tungsten film on diamond surface is above 90% and the steady tungstenic carbides WC and W2C are created by this technology. The tungsten film coated on diamond is realized.

结果表明，该方法可在金刚石表面镀覆上一层覆盖面达到90%以上的金属钨膜，且生成稳定的碳化物WC和W2C，得到由难熔金属钨包覆的金刚石。

In this paper, several coloring pigments were synthesized and the sheet metal powders were coated by these pigments with the technology of super powder preparing and particle compositing. The coated composite particles were prepared by these, and the metallic luster of the metal powders were defiladed. The mechanism and the processing conditions of composite particles were researched.

本论文以超细粉体制备及粒子复合技术为基础，在金属粉表面包覆一层红外透明性较好的着色颜料，遮盖金属粉的金属光泽，制备出包覆式复合粒子，对复合粒子的制备的机理及工艺条件进行了研究。

The south-north united tectonic environment and tectonic pattern does not exist. The east-west trend thrusting Nappe structure of Majiatan and Hengshanpu can not represent the whole western margin of Ordos. The attempt to solve the regional tectonic problem with simple tectonic pattern is against the geological theory, especially in the Helan Mountain region.(2) After the geochemical data analysis of Ruqigou basalt in Helan Mountain, the article illustrates that it belongs to continental rift basalt which appeared in the late-Triassic and early middle Jurassic. Meanwhile the article states that the region is located in the rift environment of an extension background and Rudigou is located in the central part of the rift.(3) The article illustrates that the western ridge of Helan Mountain used to be on a slope and topography slowly declines from west to east after analysis and demonstrations of the distribution under XiaoSongshan bedding fault. Through comprehensive analysis of the no-strong deformation and bedding fault features, the article states that the Xiaosongshan bedding fault used to be gravity slip detachment structure and it represents the extension from the east to the west. Based on the above and analysis and demonstrations of isotope age and track datting, the article illustrates that the ? characteristic of the east of the western ridge of Helan mountain being higher than the west is the result of its late tectonic reverse.(4) Through comparison between Rujigou region Mesozoic Era late Triassic period-early and middle Jurassic period deposit and that of Ordos Basin and the analysis of the late Triassic period extension and early -middle Jurassic Period deposit povenevance it sets forth that during the period, Rujigou region was part of a large deposit basin which was closer to the northern povenevance and farther from the western povenevance.

以马家滩和横山堡为代表的东西向逆冲推覆构造模式，在整个鄂尔多斯盆地西缘不具有全区统一性，那种试图用单一的构造模式解决本区构造问题的尝试，无疑是与地质实际相悖的，尤其是对贺兰山地区；(2)通过对贺兰山汝箕沟玄武岩地质地球化学测试分析，提出其为大陆裂谷玄武岩，其形成时代为晚三叠—早中侏罗世，并通过该玄武岩的稀土和微量元素的测试分析资料进行了多种判别分析，最终确定该区处于拉张背景下的裂谷环境，汝箕沟地区大致处于当时裂谷的中心部位；(3)通过对小松山断层面之下地层分布规律，结合其变形特征的分析论证，认为当时贺兰山西麓处于一个由东向西平缓抬高的斜坡环境，并通过小松山断层面之下地层的非强烈变形及顺层断层特征等的综合分析，认为贺兰山西麓的小松山断层原本是一重力滑覆断层，它代表了近东西向的拉张，在此基础上通过裂变径迹测试资料的分析论证对其做了进一步认定，目前贺兰山西麓东高西低的剖面特征是该区后期构造反转的结果；(4)通过对汝箕沟地区中生代晚三叠世—早中侏罗世沉积与鄂尔多斯盆地内部的对比、晚三叠世延长组及早中侏罗世沉积物源和水流向分析，认为该时期汝箕沟地区为一更靠近北部物源，而距西部物源明显较远的沉积环境，是一更大型沉积盆地的一部分。

The oxidized graphite was treated with phenol resin as coating agent to prepare composite anode material, which involves liquid-phenol-impregnation and carbonization process.

球形石墨上采用氧化-浸渍-固化-炭化的方法沉积一层酚醛树脂热解炭，制备成包覆石墨，对包覆石墨电化学性能进行了研究。

Based on the principle of powder surface modification and the coating process of chemical deposition, the composites of titania/ kaoline were prepared by the hydrolysis of titanium tetrachloride and precipitating on the surface of kaoline.

借助粉体表面改性的原理及液相化学沉积的包覆工艺，以高岭土为核，利用四氯化钛水解在其表面包覆一层纳米二氧化钛制成高岭土复合钛白，并用TEM、XRD等手段进行了表征。

As a typical duplex concentration area of oil and gas, the Chengdao oil field has three-layer structure composed of Neogene drape, Paleogene overlap and Pre-Tertiary.

埕岛油田具有新近系披覆、古近系超覆和前第三系潜山3层构造，断裂系统比较复杂。

Heading 40.10 includes conveyor or transmission belts or belting of textile fabric impregnated, coated, covered or laminated withrubber or made from textile yarn or cord impregnated, coated,covered or sheathed with rubber.

八、品目40.10包括用橡胶浸渍、涂布、包覆或层压的织物制成的或用橡胶浸渍、涂布、包覆或套裹的纱线或绳制成的传动带、输送带。

Is a professional manufacturer of single-sided and multilayer circuit board manufacturers, in the face of highly competitive PCB market, the company broke the single product structure to PCB industry based on the implementation of a diversified operation, with the exception of PCB production, but also sales of copper clad laminates and electronic components, while a number of factory lines to solve environmental problems, I Division also provides drag-cylinder boards, Recycling Waste CCL, waste water stripping, drilling aluminum, gold / tin frame .

广州市百弧电子材料有限公司是一家专业生产单双面及多层线路板的厂家，面对竞争激烈的线路板市场，公司打破单一产品结构，以PCB产业为依托，实行多元化经营，除生产PCB外，还销售覆铜板和电子元器件，另外为众多线路板厂解决环保问题，我司还提供拖缸板，回收废覆铜板、废退锡水、钻孔铝片、金/锡边框。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。