三维

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。

According to 3D analysis, it is known that shear transfer between rings are carried out by three ways. First is friction between ring joint faces; Second is dowel effect of circumferential bolts; Third is contact-hold effect of tongue-and-groove.

从三维分析可知，错缝拼装衬砌的环间剪切力传递主要通过三个途径实现，一是环缝处两个环面之间的摩擦；二是纵向连接螺栓的销栓作用；三是环缝凹凸榫的接触咬合作用。

Three dimension and turbulent are common characteristic of fluid flow problem in nature and added free surface for the best familiar fluid-water, such as flood discharge flow around frusta of brake in waterpower project, flow around hull in ship engineering, and so on, all have the three characteristics which are the very important study content and aspects in CFD.

摘要自然界中的流体流动问题一般都具有三维性和湍动性，对于最常见的流体—水则同时还拥有自由表面，水利工程中绕闸墩的泄洪水流、船舶工程中的船体绕流等均具有上述流动的三种特性，这三种特性是计算流体力学领域非常重要的研究内容和方向。

On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.

自然界中的流体流动问题一般都具有三维性和湍动性，对于最常见的流体—水则同时还拥有自由表面，水利工程中绕闸墩的泄洪水流、船舶工程中的船体绕流等均具有上述流动的三种特性，这三种特性是计算流体力学领域非常重要的研究内容和方向。

What's more,the three-dimensional velocity,density and pressure distribution of the flow field in the gravity-fed 3-product H.M.cyclone were studied as well,some conclusions were summarized.

通过对无压给料三产品重介质旋流器流场的三维速度、压强、密度和空气柱的数值模拟研究，对无压给料三产品重介质旋流器内的流场有了更深入和细致的了解，得到了几点有意义的结论。

Using the perspective drawing formation principle,this paper makes comprehensive elaboration of one-point perspective,two-point perspectives and three-point perspectives formation principle with the matrix representation method,and infers one essential method to these three kinds of perspectives formation principle which the perspective reverses,uses this essential method to reverse the picture's some characteristic point coordinates,then completes the reconstruction object's three-dimensional model with these characteristic point coordinates and carries on the confirmation using the surface,the body,these two kinds of fundamental elements as examples.

利用透视图的形成原理，对一点透视、两点透视和三点透视的形成原理用矩阵表示的方法作了全面的阐述，并对这三种透视的形成原理进行反推，推导出透视反求的一种基本方法，利用这种基本方法反求出图片的一些特征点的坐标，然后用这些特征点的坐标来完成重建物体的三维模型，并以图像中面、体两种基本元素为例进行了验证。

In chapter 3, the FLUENT software is used to simulate the 2D and 3D fluid fields of three kinds of distribution pairs (cylinder block and piston, valve port and end cap, valve plate and cylinder block).

第三章，利用Fluent流场仿真软件，对液压变压器三个关键配流副(配流盘-后端盖，配流盘-缸体，缸体-柱塞)的流场进行了初步的二维和三维仿真分析，给出了配流盘控制角度为60°下的仿真结果。

The three-faced rotating mirror with honeycomb cellular structure in ultra-high speed camera was presented,and the mechanical traits of such structural three-faced aluminous rotating mirror were analyzed by use of FEM.

提出蜂窝结构的三面体转镜，对这种新型转镜做了结构设计，利用三维有限元计算技术，分析蜂窝结构三面体铝合金转镜的力学性能。

There are more than 3000 different kinds of valves available. The products series cover hydraulic turbine input liquid control butterfly valve, soft sealing gate valve, clamp butterfly valve; flange valve, expansion butterfly valve, bi-direction metal seal ing butterfly valve, tri-eccentric metal sealing butterfly valve, eccentric semi - sphere ball valve, eccentric dual -semi - sphere ball valve, and sluice gate, hydraulic slow-closing c heck v alve , v ent valve, adjusting valve, body eccentric valve, dual eccentric butterfly valve, varied eccentric butterfly valve, Check valve with little-resistance, slow-closing, noise-eliminating , butterfly valve with mid temperature and pressure, Other types of check valves and check valve gate 、 expansion joint, and being widely used in petroleum industry, chemistry, food, medicals, light industry, paper, water and electricity, ship and boat, steel and casting, Energy and Environment industry. The main valves are ever used in heat-supplying projects of National council office.

我公司主要产品有双向三偏心金属密封伸缩蝶阀、水轮机进水液控蝶阀、软密封闸阀、三维偏心全金属密封蝶阀、自动补偿双向硬密封蝶阀、耐高温金属密封蝶阀、液控缓闭止回蝶阀、对夹式蝶阀、偏心式蝶阀、伸缩蝶阀、偏心半球阀、偏心球阀、通风阀、调节阀、双偏心蝶阀、无销蝶阀、微阻缓闭消声止回阀、旋启式止回阀、防泥沙型蝶阀、自动补水阀、阀板可移动蝶阀、偏心缓闭止回阀、多功能水力控制阀、闸门、伸缩接头和管道伸缩器等三十大系列3000多个规格，广泛用于电力、石油、化工、食品、医药、轻纺、造纸、供排水、船舶、冶炼、能源、环保等行业的腐蚀性、非腐蚀性气体、液体、半流体及固体粉末容器和管网中。

Under the condition of three kinds of nonlinearity the stress and strain distribution of the road wheel is calculated with finite element analysis software ANSYS.

建立了负重轮的三种三维有限元力学模型，在考虑三重非线性的情况下，用ANSYS有限元分析软件计算了负重轮的应力应变分布。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。