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The human cartilages are composed of chondrocyte and extracellular matrix , the form of chondrocytes are hypertrophy and the quantity are less; the ECM of cartilage are compised of type Ⅱ collagen and proteoglycan. Articular cartilages are all hyaline with little fibers. Trauma and arthritis are the main cause of cartilage injury, the ommilayer injury ofcartilage can be recovered by marrow, but because of without stimulation mechanism, the new tissues are merely fibrocartilages, they can not be coincide with hyaline cartilage in menchanics; the purely damage of articular cartilage can not stimulate chondrocyte to regenerate because of without blood circulation, thus, the plerosis of articular catilage can not depend on the proliferation of local chondrocyte. Ever since, people tried their best to find a way to reconstruct articular cartilage.

中文题名人骨髓基质干细胞成软骨诱导及多孔复合材料作为细胞载体的体外实验研究副题名外文题名 Cartilage induction of human mesenchymal stem cells and experiment on compound porous materials as cells' scaffold in vitro 论文作者刘晓岚导师周江南学科专业外科学研究领域\研究方向学位级别博士学位授予单位中南大学学位授予日期2003 论文页码总数68页关键词骨组织工程软骨细胞骨髓基质干细胞壳聚糖高分子外消旋聚乳酸馆藏号BSLW /2003 /R68 /10 造成人体关节软骨损伤的原因主要为创伤和关节炎，关节软骨全层损伤可由于骨髓中间充质干细胞的高速增殖修复，但这种修复由于缺乏相应的刺激机制，只能形成纤维软骨，而不能形成符合关节生理、力学要求的透明软骨；单纯软骨部分损伤软骨组织内无血管，软骨细胞迁移迟缓，无法使损伤区域软骨细胞再生，因此，关节炎及关节创伤后的软骨修复不能依赖于软骨细胞的增殖和迁移。

Illustrated by at-on-in, their prototypal meanings are explained and extended to time, actions and abstract concepts.

介词at-on-in构成了一个&点面体三位一体&的微观系统，它们的原型义及在时间、动作和抽象概念等方面的意义延伸，值得进行系统性地研究分析。

Writing what Judith Fetterley and Marjorie Pryse have called "language on the border land"(192), or what I am calling in this essay the linguistic bicultural, Sui Sin Far, after years of struggle, discovers in the structures of English itself how to represent the Chinese experience in America.

使用费特丽与卜莱斯所谓的「边界语言」(&language on the border land&)或是我在本文中所谓的「语言双文化」，水仙花在经过多年挣扎后，在英文本身的结构里发现如何再现在美国的中国人经验。

Actually, ruby On Rails walked along company application to had developed several years, obtain consistently reputably.

实际上，Ruby on Rails走入企业应用已经发展了好几年，并一致获得好评。

Based on the idea of coarse-grained description in physics, a new encoding method with grouped weight for protein sequence is presented, and applied to protein structural class prediction associated with component-coupled algorithm. The average rate of correct recognition is 99.72% in Resubstitution test and 91.09% in Jack-knife test for standard set of 359 proteins.

从氨基酸的物化特性出发，利用物理学中&粗粒化&思想，提出了一种蛋白质序列的分组重量编码方法（Encoding Based on Grouped Weight，简记为EBGW），并结合组分耦联算法进行结构型预测的研究。

But I know that my father wears his heart on his slive , he sleeve .

但是我知道我的父亲十分直爽坦率（wear his heart on his sleeve。

The groups are the Committee on Capital Markets Regulation, a collection of Wall Street executives and academics led by Harvard law professor Hal Scott, and the Squam Lake Group, 15 academics convened by Dartmouth finance professor Kenneth French.

这两家机构一是资本市场监管委员会(Committee on Capital Markets Regulation)，它由一批华尔街高管以及以哈佛大学法学教授斯科特为首的学术人士组成；另一个是斯夸姆湖金融监管研究团队，它由达特茅斯学院金融学教授法兰奇召集15位学术专家组成。

We shoud act stickly on the rule.

Act on 作用于，影响；对……有功效

Interestingly, cell numbers after ON transection further increased over time, while those after crush did not.

有趣的是，ON横断后细胞数量进一步随时间的增加而增加，而那些压伤的细胞则不会增加。

One of the important tasks in Resin Transfer Molding is the selection of appropriate processing parameters, so that the mold cavity will be filled completely and the composite quality can be guaranteed. Successful completion of these tasks requires knowledge of the resin flow, especially the resin flow front profiles, the pressure distribution, temperature distribution and the resin conversion distribution et al. In this paper, the governing equations of resin flow are presented on the base of the seepage mechanics, the thermodynamics and the chemical kinetics. The unlumped temperature system i.

中文题名树脂传递模塑工艺过程数值模拟与固化过程监测研究副题名外文题名 Investigation on numerical simulation and curing process monitoring of resin transfer molding 论文作者李海晨导师王彪教授学科专业工程力学研究领域\研究方向学位级别博士学位授予单位哈尔滨工业大学学位授予日期2002 论文页码总数10，121页关键词树脂固化光栅树脂传递模塑复合材料馆藏号BSLW /2003 /TQ320 /7 树脂传递模塑(Resin Transfer Molding，RTM)工艺过程研究的主要任务之一是选择合适的工艺参数，以使树脂充分润湿增强纤维，保证固化后产品质量。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。