四代的

In order to examine the catalytic activity of the new catalysts, we have carried out the direct asymmetric Aldol reaction of tetrahydro-4H-thiopyran-4-one with aldehydes.

催化剂的基本结构单元如下：为了检验新型有机催化剂的催化活性，我们研究了硫代四氢吡喃酮和各种醛的直接不对称Aldol反应。

Based upon the techniques, FAQ-master was developed to contain four agents, namely, Interface Agent, Proxy Agent, Answerer Agent, and Search Agent, which can effectively and efficiently improve the search result from the following three aspects of the Web search activity, namely, user intention, document processing,and website search.

本论文并勾勒出 FAQ-master 的四个主要组件，亦即介面代理人、代取代理人、答覆代理人与搜寻代理人的系统架构，祈能从使用者意图、网页文件处理与网站搜寻等三个观点，有效地改善网际网路搜寻的成果。

To avoid confusion, it is also commonly referred to as the Ur-Quattro (the "Ur-" prefix is a German augmentative used, in this case, to mean "original" and is also applied to the first generation of Audi's S4 and S6 sport sedans, as in "UrS4" and "UrS6").

为了避免混淆，也通常被称为推动UR - quattro的（以下简称"乌尔"前缀是德国的辅助使用，在这种情况下，意味着"正本"，也适用于奥迪的中四及中六第一代运动轿车，如"UrS4"和"UrS6"）。

Since the general limit state equation established is based on circular section,four calculation methods with section of roadway changed into equivalent circle section are put forward.

由于总体极限状态方程是在圆形巷道的基础上建立的，因此在文中还给出了一般形状巷道转化为等代圆形巷道时其半径的四种计算方法。

In the dining-room, a long and superb gallery which was situated on the ground-floor and opened on the gardens, M. Henri Puget had entertained in state, on July 29, 1714, My Lords Charles Brulart de Genlis, archbishop; Prince d'Embrun; Antoine de Mesgrigny, the capuchin, Bishop of Grasse; Philippe de Vendome, Grand Prior of France, Abbe of Saint Honore de Lerins; Francois de Berton de Crillon, bishop, Baron de Vence; Cesar de Sabran de Forcalquier, bishop, Seignor of Glandeve; and Jean Soanen, Priest of the Oratory, preacher in ordinary to the king, bishop, Seignor of Senez.

楼下朝花园的一面，有间富丽堂皇的游廊式的长厅，一七一四年七月二十九日，主教亨利·彼惹曾在那餐厅里公宴过这些要人：昂布伦亲王——大主教查理·勃吕拉·德·让利斯；嘉布遣会修士——格拉斯主教安东尼·德·梅吉尼；法兰西祈祷大师——雷兰群岛圣奥诺雷修院院长菲力浦·德·旺多姆；梵斯男爵——主教佛朗沙·德·白东·德·格利翁；格朗代夫贵人——主教凯撒·德·沙白朗·德·福高尔吉尔；经堂神甫——御前普通宣道士——塞内士贵人——主教让·沙阿兰。

In Chapter 4,adopting a new skill of combiningSQP idea with the strongly convergent algorithm obtainned in Chapter 3,we present a feasible SQPalgorithm whose initial point and iterative point all are fasible.

第四章采用SQP思想与第三章的强收敛算法相结合的新技巧，建立了初始点及迭代点均可行的可行SQP算法。

Gaskell to become the first novelist who takes the fallen woman as a heroine, which is about forty years earlier than Hardy's choosing a fallen woman Tess as the heroine in his novel Tess of The D'urbervilles.

该小说的出版使盖斯凯尔夫人成为十九世纪英国第一个把失足妇女当作主人公的小说家，比哈代创作其小说《德伯家的苔丝》要早约四十年。

In chapter l,we summarize not only Newton iteration and some deformed methods, but also the various corrections of Lipschitz condition since Kanorovich condition was put forward.

全文分为四个部分：第一章：主要总结了Newotn迭代和它的几种变形方法，以及综述了自Kantorovich条件被提出来后，人们对其中的条件给出的各种修正。

objective to investigate the influence of dit on the proliferation of human thyrocytes and compare dit with ki.to study a good kind of supplement to usi that was safe and effective.methods the human thyroid epithelium cells from para-adenoma normal tissues from thyroid adenoma patients were cultured in the absence or presence of 10-8～10-3mol/l dit or ki.mtt method was employed to obtain the proliferation of cultured human thyrocytes.

取甲状腺腺瘤旁正常甲状腺组织，应用原代细胞培养技术进行细胞培养，以不同浓度(10-8～10-3mol/l)的dit和ki刺激单层培养的甲状腺细胞，采用四甲基偶氮噻唑蓝法测定各组甲状腺细胞的增殖情况。

A fourth-order compact finite difference alternating-direction-implicit algorithm is proposed for solving the unsteady-state Navier-Stokes equations of fluid flow and heat transfer using the streamfunction-vorticity formulation. Point-successive overtaxation iteration is used to achieve the steady solutions.

本文构造了求解二维非定常涡量流函数形式Navier-Stokes方程组的一种四阶紧致交错方向隐式差分算法，对包括能量方程在内的离散化方程组采用逐次超松驰迭代法求得稳定解，求解了二维非定常粘性不可压缩流体的流动与传热问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。