查询词典 cement layer

This paper introduces the concepts of CSCW, describes the present state and discusses the problems to be solved, primarily focusing on human computer interaction, concurrency control and collaboration management. According to the research on cooperative characteristics of user actions in CSCW systems, this paper proposes a software architecture model of cooperative systems, Arbor. Its main contents include: Layered structure The Arbor model divides a cooperative system into five layers according to functional decomposition: device layer, concept layer, intention layer, cooperation layer, and computation layer. It deifies user actions and reifies the results of the actions to implement multi-level collaboration among multiple users. Multi-level collaboration obtains finegrained collaboration of the cooperative system and improves its collaboration efficiency.

本文首先介绍了计算机辅助协同工作的基本概念，着重从人机接口，并发控制和协同管理等功能方面介绍了协同系统的现状及其软件结构存在的问题，然后，基于对协同系统中用户动作的协同需求和协同特性的研究，针对目前协同软件系统存在的问题，提出了一种协同系统软件结构模型Arbor，它的主要内容包括：层次结构 Arbor模型从功能上将协同软件系统分为五层：设备层、概念层、意图层、协同层和计算层，它通过对用户动作的多层抽象和对动作结果的多层例化，实现多用户之间的多层次协同及感知，层次结构增强了系统的灵活性和适应性，方便了系统的开发，同时，多层次协同的方法获得了细粒度的协同感知，提高了协同效率。

In rat esophagus, the positive varicosities and fibres could be observed in the circular muscle layer and the muscularis mucosae layer at 21st day before birth. With the development of rat digestive tract, neurokinin A-immunoreactivity positive nerves could be observed gradually in the epithelium, submucosa, longitudinal muscle layer, myenteric plexus and submucosal plexes, while mature nerve fibres could be seen at one month after birth. 2. In rat stomach, the positive reaction of NKA initially happened in the myenteric plexus at the 14th day of embryo, and then appeared on circular muscles, longitudinal muscles, submucosal, muscularis mucosae, lamina propria and epithelium. 30 days after birth, expression of NKA is same as seen in adaulthood. 3. In rat small intestinal, the NKA-IR could first be found in the myenteric plexus of the duodenum, jejunum and ileum at 14th , 15th and 17th day before birth respectively. Then the NKA-IR occurred in the longitudinal muscle layer, circular muscle layer, intestinal villus, intestinal gland, muscularis mucosae, submucosa, submucosal plexes, mucosa plexus and deep muscular plexus.

结果 1、在食管，于胚胎21天的粘膜肌层和环肌层内观察到神经激肽A免疫阳性膨体纤维，出生后，随幼鼠的生长发育，相继在上皮，粘膜下层，纵肌层、肌间丛、粘膜下丛有NKA-IR表达，30天时已和成年鼠相似；2、在胃，首先于胚胎14天的肌间丛出现NKA-IR的表达，随发育相继在环肌、纵肌，粘膜下层、粘膜肌、固有膜及上皮内出现NKA-IR的表达，30天时具备成年鼠的分布特征；3、在小肠，分别于胚胎14、15、17天的十二指肠、空肠和回肠的肌间丛处出现NKA-IR的表达，随发育相继出现在纵肌、环肌、绒毛、小肠腺周、粘膜肌、粘膜下层、粘膜下丛、粘膜丛、深肌丛。

For the 3D human body and garment modeling and surface fitting, a human body database and a three-layer feature model are set up based on the human body measurement data. The class inheritance relations of human body are established according to three-layer feature model: object layer, feature layer and geometry layer.

对于三维人体和服装的建模与曲面拟合，设计了基于人体采集数据的人体数据库，建立了人体的对象层、特征层与几何层三层特征模型，并结合三层特征模型建立了人体类的继承关系。

RESULTS: In the retinal region without light, the structure of every layer was clear, cells in neuroepithelial layer arrayed in rule, some bubble presented in external granular layer and internal granular layer, RPE cells were compact, and the color of pigment article was coincident. In the region with direct blue light and that with 30J/cm2+Acrysof one-piece/ pMMlA, cells on photoreceptor and external granular layer were lost partially, bubble increased, RPE cells were with different sizes, and cell edema, cell lost and pigment article cluster could be seen.. In region with 30J/cm2+Natural, a little disorganization could be seen comparing to that without light, but more normal than those with Acrysof and direct eradia tion.

结果：未照射部位：视网膜各层次结构清晰，神经上皮层内各细胞排列规则，整齐，RPE细胞排列紧密均匀，色素颜色一致；单独光照和透过Acrysof一片式I0L：光感受器层部分细胞丢失，外核层可见固缩核，浓密，内颗粒层细胞大量丢失，内丛状层内空泡明显增多，RPE表面，细胞大小不均，可见肿胀、缺失，细胞内色素浓密、聚集成块；透过Nat-ural一片：与未照射处相比，视网膜各层次结构仍有部分破坏，但程度明显减轻。

The thin film transistor may include: a gate insulting layer; a gate electrode formed on the gate insulating layer; a channel layer formed on the gate insulating layer; and source and drain electrodes that contact the channel layer.

具体而言，薄膜晶体管可以包括：栅绝缘层；形成在栅绝缘层上的栅电极；形成在栅绝缘层上的沟道层；以及接触沟道层的源和漏电极。

The saltation boundary layer is divided into an inner boundary layer in which the saltating particles exert significant force on the airflow, and an outer boundary layer in which saltating particles exert insignificant force on the airflow, but the out layer is affected by the inner boundary layer.

将风沙边界层划分为跃移颗粒所产生的阻力不可忽略的内边界层和跃移颗粒阻力可以忽略但受内边界层影响的外边界层，分别建立了内边界层和外边界层的风速廓线表达式。

Removable copper shielding layer and semiconductive layer: measure 55mm copper shielding layer with gloved finger end, and peel it off; and then measure 20mm semiconductive layer from the end of copper shielding layer and peel it off.

4剥铜屏蔽层和半导电层：由手套指端量取55mm 铜屏蔽层，其余剥支；从铜屏蔽层端量取20mm 半导电层，其余剥去。

The effects of electroplated Ni layer and electroless plated Ni-P layer on the diffusion behavior in Sn-Ag/Cu solder joint were studied. The results by EPMA analysis showed that the electroless plated Ni-P layer acted as a good diffusion barrier between Sn-Ag solder and Cu substrate. However, the electroplated Ni layer can not hinder the inter-diffusion and reaction between molten Sn-Ag solder and Cu substrate when reflowing, and there was a layer of IMC (Cu6Sn5) at interface of Sn-Ag/C u solder joint.

摘 要：研究了电镀Ni层和化学镀Ni-P合金层对Sn-Ag/Cu焊点扩散行为的影响，电子探针分析表明：化学镀Ni-P合金层能很好地阻止Sn-Ag/Cu焊点在焊接过程中的Cu，Sn互扩散和相互反应；而电镀Ni层则不能阻止Sn-Ag/Cu焊点在焊接过程中的Cu，Sn互扩散和相互反应，界面反应产物仍以Cu6Sn5为主。

The repair of the cement concrete pavement is very difficult, there are two kinds of measures mainly both at home and abroad: the first one is adding asphalt concrete layer, the second one is adding cement concrete layer.

对水泥混凝土路面的修复比较困难，国内外常用的措施主要有两种：第一种为加铺沥青混凝土面层，第二种为加铺水泥混凝土面层。

2 Surface water ratio of cement surface layer shall be less than 9 %; strength of cement surface layer shall be greater than 21MPa

5.2水泥类面层的表面含水率还应小于9 %；水泥类面层的强度应大于21MPa

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。