查询词典 profile

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory.

本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

By numerical integral of this model, the factors which affect the additional twist of yarn are analyzed, including the pressure in the profile tube, the coefficient of friction between the fiber band and lattice apron, the length of the suction slot and the curvature radius of profile tube.

通过对集聚区内须条的集聚过程分析，建立须条的受力模型，发现须条在集聚过程中会产生附加捻度，并且对影响须条附加捻度的各种因素：异型管开槽长度、负压大小、须条和网格套圈间的摩擦因数以及异型管的曲率半径进行了分析。

It proves that; The grass-covered soil profile in depression is formed by accumulation, and the 137 Cs concentration variation with the depth of the profile reflects the information of sediment accumulation and surface soil erosion.

研究结果表明：(1)草地洼地土壤剖面属于堆积土壤剖面，土壤剖面中137Cs浓度分布特征反映了泥沙堆积与表层土壤侵蚀的信息。

The processes which include the automatic recognition and extraction of the profile for a hot forging, the calculation of the tonnage and center of hammer blow, the choice of flash, and profile of flash land and magazine etc.

用程序实现了热锻件外轮廓的自动识别和提取、设备吨位和打击中心计算、飞边选择、自动加飞边桥部和仓部等全部过程，其结果得到了工程技术人员的认可。

Firstly, according to the analysis of the forming principle of the involutes profile and the tooth thickness of formula, a mathematical model of involutes profile was established.

首先，根据对渐开线齿廓形成原理和渐开线齿轮任意圆上的齿厚公式的分析，建立了插齿刀的渐开线圆柱齿轮齿廓的数学模型。

A comparatively complete layout chart is built by using small shot interval and receiver spacing in Tianjin-Beijing-Chicheng Deep Seismic Sounding profile. Based on the DSS data of the profile, the crustal structure and the tectonic coupling are studied in the rift-depression basin of eastern North China and Yanshan uplift.

天津—北京—赤城深地震测深剖面采用密集炮点和接收点距设计构成了较为完整的观测系统，利用该剖面地震测深资料研究华北东部裂陷盆地与燕山隆起地壳结构及构造耦合。

On the basis of analyzing and calculating transverse tooth profile for geometry, the symmetry line and tip arc of transverse tooth profile for a teeth of gear were defined and it also be drawed out.

由于渐开线圆柱齿轮的端面齿廓为渐开线，而且轮齿的厚度与齿轮的模数相关，所以用AutoCAD建立渐开线圆柱齿轮的三维模型十分困难。

Throats are so easily blocked up for clay in rocks that the permeability decreases and the output is affected. The problem can be mostly worked out by inputting clay inhibitor into formations. Production well loggings, such as well logging of output profile, well logging of injection profile with five parameters, engineering well logging, were gained research in Hailaer oil field in this paper.

海拉尔油田是低渗透且具有断块性质的新开发油田，本文提出在对海拉尔油田开发进行地球物理监测时需要解决一系列关联的钻井地质工程问题，诸如岩石中富含粘土成分容易引起地层微粒堵塞喉道、孔道，从而导致渗透率下降现象，直接影响采油井产量。

Fuzhou-Czech Plastic Machinery Co., Ltd. is the domestic production of plastic machinery manufacturers one of the professional, the company has a group of the original plastic machinery plant in Fujian Province rich practical experience in the production of skilled workers and advanced technology and equipment; main production of plastic extrusion machines, plastic injection molding Machines, plastic heat shrinkable film machines, plastic pipe extruder, plastic sealing machine, plastic profile extruder, plastic blown film machines, plastic cushions film extruders, plastic wire drawing machine, plastic granulator, plastic recycling granulation Machines, beverages suction machine, plastic film-torn and broken plastic machine, mixer, cable wire extrusion unit, packaged with units, and other auxiliary and supporting various extrusion dies (Blown Film nose, drawing the nose, pipe Die expansion, the porous Die, Die Profile, etc.).

福州通捷塑料机械有限公司是国内生产塑料机械的专业厂家之一，公司拥有一批原福建省塑料机械厂丰富实践经验的生产技术人员及先进的技术装备；主要生产塑料挤出机、塑料注塑机、塑料热收缩膜机、塑料管材挤出机、塑料封口机、塑料异型材挤出机、塑料吹膜机、塑料气垫膜挤出机、塑料拉丝机、塑料造粒机、塑料回收造粒机、饮料吸管机、塑料撕裂膜机以及塑料破碎机、混合机、电缆电线挤出机组、打包带机组、等配套辅机和各种挤出模具（吹膜机头、拉丝机头、管材扩口模、多孔管模具、异型材模具等）。

Using the finite element method and based on finite element simulation of profile extrusion process, the effect of local extrusion ratio, die land area and the distance between extrusion cylinder center and die opening center on mental flow velocity is studied. The deformation flow laws on profile extrusion process are obtained.

本文采用有限元方法，以型材挤压过程的有限元模拟为基础，研究了局部挤压比、挤压带面积和模孔距离对金属流动速度的影响，获得了型材挤压过程的变形流动规律。

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。