查询词典 silica

We have studied silica single and double chain based on two-membered ring and nanotubes based on three-membered ring using the density-functional theory at 6-31G level.

运用密度泛函理论，在6-31G基组水平上，对二元环组成的Si02单链、双链纳米线和三元环组成的纳米管进行几何优化，并对其结合能、电子结构和振动频率进行计算。

We have studied silica single and double chain based on two-membered ring and nanotubes based on three-membered ring using the density-functional theory at 6-31G level. The average binding energy, electronic structure and vibration frequency were calculated.

运用密度泛函理论，在6-31G基组水平上，对二元环组成的SiO2单链、双链纳米线和三元环组成的纳米管进行几何优化，并对其结合能、电子结构和振动频率进行计算。

I am in improving product quality assurance system, rely on advanced casting equipment and technology, investment casting, casting process silica sol, professional deal with all kinds of complicated structure castings, good at all kinds of stainless steel precision castings, the main products cover : Pipe valve, fast connections, marine hardware accessories, hardware and tools, construction hardware, machinery hardware, locks series, doors and windows furniture accessories, kitchen and toilet hardware accessories (pot handles, burning stalk, ears covered ), Flange, such as Castings, products widely used in machinery, construction, shipbuilding, automobiles, household, medical and other fields.

目前我公司在完善的产品质量保证体系下，依靠先进的精铸设备和技术，采用熔模铸造，硅溶胶精铸工艺，专业处理各种复杂结构铸件，擅长各种不锈钢精密铸件，主要产品涵盖：管件阀门、快速接头、船用五金配件、五金工具、建筑五金、机械五金、锁具系列、门窗家具配件、厨卫五金配件、法兰等精铸件，产品广泛应用于机械、建筑、船舶、汽车、家居、医疗等领域。

Lead * Welding Fumes * Silica * Coal dust * Wood/Paper * Concrete/Cement * Cadmium * Nuisance Dusts * Chromate * Toxic Soil Remediation * Tobacco smoke * Construction Dust * Dry Chemical * Oil Mists * Grinding Dusts * Pharmaceuticals * Spray Paint * Grain Features The Air Aide Airborne particulate monitor has a multitude of features the list could go on forever, but for now we will just name a few.

铅 *焊接烟气*硅胶*煤粉尘*木材/纸*混凝土/水泥*镉*无害粉尘*铬*有毒土壤*烟草烟雾*工程粉尘*干化学*油雾*磨削粉尘*制药*喷漆*粮食特征空气悬浮物颗粒监测仪具有多种功能，现在仅举几例。

Titanic dioxide, zinc oxide and silica of nano- and submicron sizes were used as the test materials.

二氧化钛、氧化锌和二氧化矽粉体为本研究选用的奈米粉体，每种粉体皆分成奈米级和次微米级二种。

The results show that aluminum sulfate dregs is consist of 66.36% silica, 6.48% alumina, 2.25% titanic oxide, 0.66% ferric oxide and 1.17% calcic oxide.

实验结果表明，硫酸铝废渣的组成为SiO266.36%，Al2O36.48%，TiO22.25%，Fe2O30.66%，CaO1.17%。

The application of silica 175GR in the tread of truck tire was investigated by regression design method.

研究白炭黑175GR在载重轮胎胎面胶中的应用。

Tin dioxide (SnO2) nano-particles were prepared on high silica TON, MFI and FAU type zeolites by impregnation of SnCl2 solution and subsequent calcination at 873 K.

将高硅TON， MFI和FAU沸石分别浸渍于SnCl2溶液，再于873 K温度下焙烧，在高硅TON，MFI和FAU沸石外表面制备出二氧化锡纳米粒子。

Using this method, the porous silica product prepared in this research has three-class pores.

实验结果表明：制备的多孔氧化硅的孔道发育良好，含有三级孔道。

Chemical treatment ; Silica ; Degradability ; Epidermis ; Stem ; Rice straw

化学预处理；硅化；降解率；表皮层；茎；稻草

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。