后壳

Sand or artificial pearl nuclear in a Pinctada martensl, a shellfish, with overlapping accumulation of the excretive protein film from cells in the inner shell theca and the conjunctiva layer of calcium carbonate.

南珠的形成：南珠是珍珠贝科动物中马氏珍珠贝受刺激物刺激后，外套膜的部分细胞所分泌的壳角蛋白膜和碳酸钙的结薄层交互重叠，围绕着刺激物沉积而成的圆形或其他形状的物体。

The micelle granules were accumulated in the guttate structure. Both liquid crystal phase and isotropic phase coexisted here. With the volatilization of solvent, the structures can change from disc or hexagon to cube with the variation of environment and interior reciprocity.

结果表明，在该薄膜中有被冻结的液晶滴状结构，随着溶剂的挥发，膜体系内氢键的种类和数目发生改变，壳聚糖胶束颗粒聚集成圆盘或六角状，体现为同心环堆积，一定时间后转变为立方环状结构。

Although a grade II CT sign resulted from various types of MCA occlusion, it was reliably predictive for the presence of partial, or sometimes total, involvement of the lenticulostriate arteries in ischemia.

尽管深部大脑中动脉分布区II级早期CT征象（部分壳核后外侧区出现低密度）可因各种类型的动脉闭塞位置所引起；但通常提示部分或所有豆纹动脉受累发生缺血。

Early CT signs in the deep MCA territories were divided into three grades according to their anatomic location: grade I, normal basal ganglia with hypodensity localized to the insula; grade II, partial obscuration of the posterolateral part of the putamen; and grade III, hypodensity of the entire lentiform nucleus.

将深部大脑中动脉分布区出现的早期CT征象，依据其解剖位置而划分为3级：I级：低密度区局限于岛叶，基底节区正常；II级：部分壳核后外侧区出现低密度；III级：整个豆状核区均出现低密度。

This orogenetic process is a series of completed tectonic evolution, reflecting the initial orogenic magma underplating and magma mixing, the peak orogenic strong interaction between the crust and mantle, the late orogenic lithosphere started to delaminate and the post—orogenic extensional tectonic setting.

该造山过程为一套完整的演化序列，反映了初始造山的岩浆底侵作用，峰期造山强烈的壳幔相互作用，后期造山岩石圈开始拆沉作用及后造山的伸展构造背景。

However, relating to investigate the modes, courses and characteristics of the orogenetic process in Paleozoic and after orogenetic process, the cognitive divergence have still occurred.

通过对新疆北东部地区不同构造区带构造作用的方式、过程和特点的研究，确定：①南天山榆树沟高压麻粒岩地体的正变质原岩是一个基本完整的蛇绿岩套，其经历了俯冲至下地壳的高压麻粒岩相、构造抬升至深地壳麻粒岩相以及快速构造折返至角闪岩相的变质过程，代表了南天山洋壳俯冲、变质、随后折返的过程，并首次确定了变质过程的PTt轨迹；②奥陶纪末期中天山北缘发生洋盆俯冲、地体增生作用，此时萨日达拉地区处于岛弧活动带；中石炭世晚期中天山小型洋盆关闭，准噶尔地块与伊犁—中天山板块斜向对接随后发生脆韧性质近水平高温低速右行走滑剪切；③根据巴音沟地区不构成蛇绿岩套有效成分的硅质岩具有与活动大陆边缘密切相关的地球化学特征以及洋中脊玄武岩显示其岩浆源区受到消减带流体交代作用的影响，结合区域地质资料，首次提出巴音沟蛇绿岩带所代表的洋盆古构造环境为弧后盆地，并于早石炭世至中石炭世末期间，经历了扩张、收缩和闭合过程；④首次在克拉麦里蛇绿混杂岩带中分解出具有N-MORB、T-MORB与OIB三种不同类型的火山岩岩石组合，反映了洋盆俯冲

The total aerobic plate counts for bacterial colonies, coliform and the microflora of the purified oyster by ozone were identificated. The oyster Ostrea plicatula were collected from the breeding base in Xidian, Ninghai county of Ningbo.

采集浙江省宁海县西店养殖的褶牡蛎去壳取肉，经过臭氧水杀菌净化处理后，对牡蛎体内细菌菌落总数、大肠菌群和细菌菌群组成进行了分析研究。

Results: It indicated that compared with the one character naming task, the brain activation regions were smaller and more concentrated in three character naming task, and more deactivation was appeared in the left pericentral gyrus, right precentral and postcentral gyrus, left superior temporal gyrus and right putamen.

结果：与单字命名条件相比，三字命名条件下的脑激活范围更小、更集中。而且，三字命名条件在左侧中央旁回、右侧中央前回和中央后回、左侧颞上回以及右侧壳核出现了更强的负激活。

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。

Shell polyose is one kind escapes the acetazolamide after the carapace element the product.

壳聚糖是一种由甲壳素脱乙酰基后的产物。

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。