硅

Physicochemical characteristics of silica fume including chemical constitution,particle shape, mineragraphy structure were introduced in the paper.

从化学成分、颗粒形状、矿相结构等方面介绍了硅微粉的物理化学特性，比较了几种主要的回收设备、包装、运输与贮存方法，探讨了其中存在的问题，展望了硅微粉综合利用的前景。

The monochloro methane is used for the methyl chloresilane element original material and organo silicone.

一氯甲烷主要用作甲基氯硅烷单体原料，用于有机硅行业。

Monofilm of silane on the surface of the glass substrates is prepared via the method of self-assembled monolayers, Hf (SO4)24H2O and HCI are used as raw materials, HfO2 thin films are prepared on the active groups of the alkyl silane by the liquid phase deposition.

利用自组装单层膜技术，在玻璃基板上生长有机硅烷单分子膜层，以Hf(SO4)24H2O和HCI配制HfO2前驱液，通过液相沉积在硅烷的功能性官能团上诱导生成二氧化铪薄膜。

With heated water for extraction, DMSO,HMDS and C3H9 CLSI as derived reagent, the content of monose in Acanthopanax Senticosus tea is determined by capillary chromatography.

采用沸水提取，二甲基亚砜溶解，六甲基二硅氨烷和三甲基氯硅烷为衍生试剂，用毛细管气相色谱法测定了五加参茶中的糖含量，共测出6种单糖。

Three part of research works had been carried out in the dissertation. The first part: a kind of multidentate amine modified silica gel was synthesized through the following steps:(1) introduce the amino groups onto the surface of silica-gel by the treatment of surface silanol groups withγ-aminopropyl trimethoxy silane;(2) michael addition of excess trihydroxymethyl propyl triacrylate to amino groups on the silica gel surface;(3) amidation of the unreacted double bonds of TMPTA on the surface of TMPTA modified silica gel with diethylenetriamine;(4) the multidentate amine modified silica gel was finally obtained by the reaction of amino groups on the surface of DETA modified silica gel with double bond of butyl acrylate.

本论文进行了三部分研究工作，第一部分：通过多步反应对硅胶进行改性合成了一种多齿胺改性硅胶配体，合成过程如下：1通过γ-氨丙基三甲氧基硅烷与硅胶表面的硅羟基反应，使硅胶表面带有氨基；2利用硅胶表面氨基与过量的三羟甲基丙烷三丙烯酸酯发生Michael加成反应；3利用二乙烯三胺与TMPTA改性硅胶表面未反应的双键发生反应使硅胶表面氨基化；4最后用丙烯酸正丁酯与DETA改性硅胶表面氨基充分反应成功合多齿胺改性硅胶配体。

Under the experimental conditions in this study, when the silicon powder with a particle size of 2.7 μm is used as raw materials, with a nitridation temperature of 1380℃ and nitridation time of 54.5 s, the conversion rate of silicon is 22.5%.

在本文条件下，当以平均粒径2.7μm的硅粉为原料、氮化温度为1380℃、氮化时间为54.5 s时，硅的转化率为22.5%。

Series of defoaming agent were developed by several university professors, our specialists and technologists. Its high quality silicon material and food-grade raw auxiliary material are imported from world famous company such as American Dow Corning,Norna, ShinEtsu and Toshiba.

由我司技术人员联合各高校多位教授及专家共同开发的消泡剂系列产品，采用世界著名的如道康宁，罗纳、信越、东芝等有机硅专业公司生产的高品质硅材料及其它食品级原辅料，按国际先进工艺标准合成，具有优秀的消泡、抑泡效果，既有专业型、也有普适通用型。

Finally the application of the homemade ODS for MSPD and the economical availability of the product was evaluated. Results show as the following: 1. It is a simple method for the preparation of a bonded octadecyl phase which has large particle and high extent of coverage of the bonded phase.

研究结果表明：①采用大粒径无定形硅胶为基质，选择十八烷基三氯硅烷为硅烷化试剂，完整地合成了一种大颗粒、高表面积的ODS键合相，合成的ODS可作为基质固相分散MSPD的固相分散剂，用于样品的前处理。

And whether is it necessary to redefine the geotectonic pattern in southern China? In 1993, the authors discovered firstly the late Paleozoic radiolarian silicalite in the "Shuangqiaoshan Group", which, as we know, is a block within the ophiolitic mélange. In 1996, the authors discovered again the late Paleozoic fossils in the other rocks of "Shuangqiaoshan Group" and "Zhitang Formation" of Lower Sinian Series in the ophiolitic mélange. At the same time, the authors discovered firstly the early Paleozoic chitinozoa fossils.

因此，再次将&板溪群&是否是前震旦纪的一个变质地层单位、江南古陆是否存在以及华南大地构造格局是否需要重新厘定等问题提了出来。1993年笔者于赣东北蛇绿混杂岩带内的&双桥山群&岩块中，首次发现了含晚古生代的放射虫硅质岩。1996年又在该混杂岩带多处的&双桥山群&岩块和&下震旦统志棠组&中找到了含晚古生代的放射虫硅质岩，还首次在&登山群拔竹坑组&中发现了早古生代的几丁虫化石。

The direct synthesis of organosilicon monomer is the key and foundation stone of the global silicone industry.

直接法合成有机硅单体是有机硅工业的关键和基石。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新