主要产物

The hydrated products and pore size distribution of high road fly ash cements were studied by means of XRD,DTA,Mercury porosimeter,etc.,The experiment results showed that C-S-H gel,AFt were the main hydrated products in high road fly ash cement,but the contents of Ca 2 were lower.

实验结果表明，公路粉煤灰水泥的主要水化产物是C -S -H凝胶、AFt及少量的Ca 2 。

The thesis is divided into two areas: The first area investigated using gold, silver complex to catalyze the cyclization of propargyl alcohol molecules to produced the cyclohexanone products in high yield at room temperature.

题目将分成两个部份：第一个部份主要研究金属金和金属银错合物催化丙炔醇类分子的环化反应，在室温下反应产生高产率之环己酮产物。

The results showed that spherical BaCO3 particles with low reaggregation and uniform size of about 100nm could be prepared by using solid-state reaction of Ba(NO3)2 and Na2CO3 at room temperature; while stick shape particles, whose size is not uniform, were obtained for the BaCl2 2H2O and Na2CO3 system. For the Ba(NO3)2 and NH4HCO3 system, the products are spherical whose average size is about 200nm.

利用Ba(NO_3)_2与Na_2CO_3固相反应体系，可以制备出平均粒径约为100nm，形貌近似为球形的纳米BaCO_3；由BaCl_2·2H_2O与Na_2CO_3体系所得产物主要为棒状BaCO_3，且大小不一；由Ba(NO_3)_2与NH_4HCO_3体系可以制备出平均粒径约为200nm、形貌近似为球形的BaCO_3粒子。

Ettringite is not stable in concrete, however,it always tends to recrystallize.

文章摘要：钙矾石是水泥重要的水化产物之一，也是铝酸盐类膨胀剂产生膨胀的主要物质，但它在混凝土中并不稳定，容易发生重结晶。

Acetate groups charge ZnO nanocrystals negatively and passivate the surfaces,reducing the surface defects and visible emission centers. Resultantly, the increase of acetategroups lead to the quench of visible emission and improvement of photoluminescenceproperties. At appropriate concentrations, the hydroxide groups mainly passivate the surfaceand improve the photoluminescence properties.

研究发现，氢氧化锂/醋酸锌的比值对胶体氧化锌量子点的发光性质有重要影响；醋酸根基团通过使氧化锌粒子带负电荷并钝化其表面，使得氧化锌纳米点的表面缺陷和可见发射中心大大减少，因此醋酸根浓度的增大导致了可见发光的淬灭和发光性质的增强；氢氧根基团在中等浓度时主要起钝化氧化锌表面的作用，使产物的发光性质得到改善。

Methods To determine the content difference of main secondary metabolites from 3 different provenances roots of Rumex gmelini planted in the same growth condition by HPLC.

通过HPLC法检测同一生长条件下的3种不同种源毛脉酸模根中主要次生代谢产物的含量动态变化规律。

ConclusionThe difference of the main secondary metabolites is determined by the provenances in the root of Rumex gmelini planted in the same growth condition.

结论在同一生长环境下，毛脉酸模根中主要次生代谢产物含量的差异更多的是由其种源所决定的。

These results indicate that cabbage phenolic extract and single phenolic acids,i.e.Ferulic acid,Sinapinic acid and Gallic acid,etc.

研究表明，卷心菜提取物以及单个酚酸（儿茶素、阿魏酸和香豆酸）可以抑制〓、〓—7，8—二氢二醇和四氯化碳在肝微粒体作用下的代谢，降低主要代谢产物〓—7，8—二氢二醇、〓—7，8—二氢二醇—9，10一环氧化物和丙二醛的生成量。

Thus, the research on the mechanism and kinetics of such reaction has been a focus of understanding the influence of coal combustion on the air for scientists. In this paper, we put emphasis upon the reaction mechanism and kinetics of mercuric and stannic oxidation by oxidants. Up to date, the experiments showed that mercuric chloride species were the main products of mercuric oxidation, but the microscopic mechanism and kinetics of it were not well understood.

研究这些重金属元素在煤燃烧过程的化学反应机理及反应动力学特征，是目前研究煤燃烧对大气影响的重要的研究课题，本文中我们重点研究煤燃烧过程中汞和锡生成氧化物和氯化物的机理与反应动力学，煤燃烧过程实验发现汞系列产物主要是氯化物，但对其微观反应机理和反应动力学研究很少有报道。

It is found that the higher the calcination temperature of MgCO3,the smaller the specific surface area of MgO is,so is the initial reaction rate of sulphation of MgO.

实验表明，菱镁矿(主要成分MgCO3)的煅烧温度越高，其煅烧产物MgO的比表面积越小，因而MgO硫酸盐化的初始反应速率越低。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。