查询词典 titanium

And titanium dioxide is a promising nonhazardous potential method in organic waste water treat catalyst in application for its high catalysis ac tivity and chemical stability.

TiO2因具有相对高的催化活性、化学稳定性和无毒无害而成为当前应用最有潜力的一种光催化剂。

The grafting of polycaprolcatone on starch by ring-opening polymerization of e -caprolactone was initiated from the starch hydroxyl functions in the presence of a catalyst such as stannous octoate Sn(0ct2, Dibutyltin dilaurate or titanium tetrabutoxide. The grafting ration could reach 16%. IR, X-ray diffraction and DSC were used to investigate the grafting-polymer.

在辛酸亚锡Sn(Oct_2、二月桂酸二丁基锡和钛酸丁酯等催化剂作用下，淀粉羟基引发己内酯单体进行配位聚合，淀粉接枝率可以达到16％，并通过红外光谱、X—ray衍射及DSC等测试手段对反应产物进行了表征。

Investigated the organic surface modification of anatase titanium dioxide pigment and its adsorption mode. It was founded that the surface hydroxyl groups are the active centers for olefinic acid. The adsorption of modifier fit Langmuir single molecule layer adsorption mode.

研究了锐钛型钛白的有机表面改性及表面吸附模型，认为表面羟基是有机烯酸表面改性的活性中心，改性剂在钛白表面的吸附符合Langmuir单分子层吸附模型。

Objective Compare and analyze the hearing results and complications of bioceramic and titanium ossicular protheses in tympanoplasty.

目的 比较生物陶瓷及钛金属两种不同材料人工听骨赝复物在听力重建鼓室成形术后的并发症发生率、术后听力改善状况。

Nano titanium dioxide is of favorable biological and chemical inertness, strong oxidizability, low cost and long-term stability against photocorrosion and chemical corrosion. Nano TiO_2 and TiO_2/SiO_2 thin films are used photocatalysis degradation materials and self-cleaing materials, and can kill bacteria and virus.At present it is the hot spot in the research of photocatalysis, and it is of great value in the practical applications.

由于纳米TiO_2具有良好的生物和化学惰性、较强的氧化性能、低成本、以及对光腐蚀和化学腐蚀的稳定性等，故其薄膜不仅能用作光催化降解和自洁净材料，还能杀死细菌及病毒，是目前光催化材料的研究重点，具有广阔的应用前景。

The laboratory investigation result showed that the key effect factor on decomposition of hydrogen peroxide was the alkaline environment due to the presence of ammonia in the reaction system of amm oximation of cyclohexanone to cyclohexanone oxime over silicon-titanium zeolite.

在实验室对钛硅分子筛催化环己酮氨肟化制备环己酮肟反应体系中引起H_2O_2分解的原因进行了考察。

Titanium cable cerclage fits for the treatment of comminuted patellar fracture and has better recovery of knee joint function.

钛缆环扎法适合髌骨粉碎性骨折的治疗并可取得更好的膝关节功能恢复。

The aim of this thesis is to prepare rutile TiO2 nanorods under the hydrothermal condition and to investigate the correlation between the preparation parameters and the photocatalytic activity of as-prepared TiO2 samples. The initial sols for TiO2 were prepared by the hydrolysis and condensation of Ti precursor, titanium n-butoxide 〔Ti4, TNB〕 in DI-water with hydrogen chloride as a peptizer.

中文摘要本研究的主要目的是制备以水热法制备金红石相二氧化钛奈米棒并探讨其制备条件与光催化活性的相关性，以四丁基氧化钛为前驱物，在盐酸的催化下，经由水热处理来合成金红石相的二氧化钛奈米粒，并藉由XRD鉴定其结晶相，TEM来观察其外观形貌及其颗粒大小，氮气吸附法来分析其比表面积。

It was shown that the 5% perchloric acid and 20 Adm^2 current density were good to electropolishing of the titanium alloy.

抛光后的钛合金表面形貌观察结果表明：在高氯酸含量较低(5%)的溶液中以20 Adm^(-2)电流密度抛光可以取得较理想的效果。

The selectivity of phenylacetaldehyde is increased when Br〓nsted acidity is getting stronger. The selectivity of benzaldehyde can be increased by increasing the amount of extraframework titanium species.

分子筛的B酸中心强度对产物分布有着显著的影响，B酸越强，苯乙醛的选择性越高，B酸位是催化环氧苯乙烷定向重排生成苯乙醛的催化活性中心；非骨架钛物种的增加有利于苯甲醛的生成。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。