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Negative skin friction,axial force of the pile body and neutral point which provide reference for engineering are researched by using finite element sofware ABAQUS. It is about the properties of overlength piles with practical engineering parameters and conditions under silt sediment.

采用有限元软件按实际工况模拟长时间、大面积促於条件下桩侧摩阻力、桩身轴力、中性点等随促於时间的发展变化，为围垦区促於提供理论支持。

Dahuofang water diversion project is a typical case of this kind of engineering. This project is divided into two parts from Anshan pressure station: the up-gravity-force water diversion with double-pipe, and the down-pressure-flow part, which provides water for seven water supply station of six cities, lots of brunches, and full of ups and downs, covering many kinds of boundary conditions of modern engineering.

大伙房输水工程就是其中一个较为典型的工程实例，该工程以鞍山加压站为分界点将整个系统分为两部分，鞍山上游为重力流输水并且有一段为双管运行，鞍山下游为压力流，一共给6个城市7个净水厂供水，多分支，多起伏，几乎包含了当今输水工程中存在的各类边界情况。

Department of Missile Engineering Ordnance Engineering College, Shijiazhuang 050003; Nanjing 73906 of Armed Force 1 , Nanjing 210028

军械工程学院导弹工程系，军械工程学院导弹工程系，南京73906部队，南京73906部队石家庄 050003，石家庄 050003，南京210028，南京210028

Engineering College, Air Force Engineering University, Xi'an Shaanxi 710038, ChinaAbstract: The math model of the movement, flux and control system of position pump was established by analyzing its working principle, and its hydraulic system simulation model was established based on AMESim. The pressure and flux pulsation of the position pump was analyzed, and the pressure and flux was calculated by simulation when there are sign of wear for the position pump and system flux change.

分析了恒压力轴向柱塞泵的工作原理，推导并建立了液压泵压力流量和压力调节机构的数学模型，并在此基础上以AMESim工程软件为平台建立了轴向柱塞泵的仿真模型，分析了压力流量脉动状况并对液压泵在内部磨损和系统流量变化两种情况下的压力流量进行了仿真计算，对两种情况下泵的工作情况进行分析比较，为液压脉动抑制和故障分析提供了参考。

The company's purification products are widely used in precision electronics, integrated circuits, LCD conductive glass, medical, pharmaceutical industry, GMP, biochemical engineering, aerospace, military science and food, cosmetics industry, the company with quality products and good after-sales service to win the majority of customers trust and support. Through the introduction of the company in 2003, GM built only a glassy magnesium Color composite plate automatic production lines, annual output of 500,000 square meters, and product quality to international standard, and Department of Youjuan company from design, production to installation guide has a well-advanced The technical force and is equipped with high-, intermediate engineering and technical personnel and product development staff by more than 60, according to the different requirements of customers design and processing a variety of non-standard products to meet different customer needs.

公司的净化产品广泛应用于精密电子、集成电路、LCD导电玻璃、医疗、制药行业GMP、生物化学工程、航空航天、军事科学及食品、化妆品行业，公司凭借优质的产品和良好的售后服务赢得了广大客户的信任和支持。2003年公司通过引进、改造建成了国内唯一的一条玻镁彩钢复合板全自动生产线，年产量500，000平方米，并且产品质量达到国际水平，汇隽公司从设计、生产到指导安装拥有雄厚先进的技术力量，并配备有高、中级工程技术人员及产品开发人员60多名，可根据客户的不同要求设计加工多种非标准产品，以满足客户的差异需求。

Companies around the phenolic foam technology development with the Department of technology development, testing centers, synthetic resin plant, new product demonstration plant, the installation of the Department of Engineering and other departments engaged in phenolic technology development of professional engineering and technical personnel account for 35%, three engineers (one of a phenolic foam in the area has a special contribution and enjoy the special allowance of the State Council and awarded a certificate), Engineer 8 people, strong technical force, facilities, with independent research and development, pilot demonstration, production and sales of the economic entity.

公司围绕酚醛泡沫技术开发设有技术开发部，检测中心，树脂合成车间，新产品示范厂，工程安装部等部门，从事酚醛技术开发的专业工程技术人员占35%，高级工程师三人(其中一名因在酚醛发泡方面有特殊贡献，享受国务院特殊津贴并颁发证书)，工程师8人，技术力量雄厚，设施齐全，具有独立自主的开发研究，试验示范，生产销售的经济实体。

Even if be like Microsoft by force, some closer year will also be forced to be moved toward ceaselessly on the operating system open, because of Gu Ge such newly emerging force blusterous move should roll out the free operating system that is based on Internet completely!

即使是强如微软，近些年来也在操作系统上被迫不断走向开放，因为谷歌这样的新生力量正叫嚷着要推出完全基于互联网的免费操作系统呢！

On Internet, it more resembling is the hand that lends force to make force only, make with relative to less income and investment, can coordinate the resource with more capacious drawing.

在互联网上，它更像是一只借力打力的手，使得以相对较少的收入与投入，就能协调牵引更为广阔的资源。

According to the engineering practice, the elements related to the computative model have been remaked to consider the effect of the centrifugal distributive force and blade surface force.

只要输入一个转速信息，程序就可自动加载离心分布力的作用，为高转速汽油机涡轮增压器的力学分析提供了有力的工具； 4。

In the aspect of the force analysis between cycloid disk and pin wheel, a kind of force analysis method of the mesh with initial clearance is put forward in allusion to the teeth profile of the equidistant and radial-moving combining modification, which is more accord with the actual engineering.

该方法主要是从整个传动过程中动态地考虑摆线轮与针齿齿面的受力情况，依据摆线轮与针齿的实际最先接触点的分布区间不同，对不同的等距与移距组合修形方式分别给出了动态受力分析方法，并且在整个传动过程中进行了优化搜寻，从而得出了整个传动过程中的接触力动态变化规律，相对以前的受力分析方法，计算的精度和准确性得到了提高。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。