查询词典 hydraulic

Hefei Haide Hydraulic Pree CO,Ltd.is located in the Individually-run Scientific Park of Hefei Economic Tehnical Development Zone, which is a scientific-type individual-run enterprise to research and develop hydraulic presses.It covers an area of 700 spuare meters,With assembly workshop and office building here.The company takes the aim of "man is important,market is the guidance and techmical innovation is the suppout"to service for market and exploit the market.An excellent enterprise figure has been built in many customers.

合肥海德数控液压设备有限公司位于合肥经济技术开发区民营科技园内，是专业从事液压机研制的科技型民营企业，公司自创建以来，一贯本着以人为本，以市场为先导、以技术创新为依托的宗旨，积极服务于市场，开拓市场，在众多的用户中树立了良好的企业形象。

QYJ Fully-auto Hydraulic Cutting Forming Machine is a newly-developed static press machine on the basis of hydraulic press machine and cutting forming machine, which is full of all advantages of these two.

泉州联达市政机械制造有限公司通过机电商情网发布供应HQY-2500型多功能路面砖液压成型机的信息，您可以点击查看此产品的详细介绍

A general mathematic model of lifting subsystem and hydraulic balancing subsystem was set up by using correspond relation of the force and the displacement at the interface of lifting and hydraulic system, then the question that the principal diagonal elements of mass matrix were zero is resolved. Meanwhile the effect on the general dynamic characteristic of ellipticity of is considered.

通过卷扬系统与液压系统在界面耦合处的力和位移协调关系，建立诸如M〓+C〓+KX=F形式的机械卷扬-液压均衡系统综合数学模型，模型中考虑了卷筒椭圆度偏差以及直径偏差对整体动态性能的影响，解决了耦合后数学模型质量矩阵主对角线元素奇异的问题。

As an important component of electro-hydraulic proportional control system, the electro-hydraulic proportional valve controller is a device that providing a specific current to proportional valve, so that the flow or pressure of the liquid under continuously control in proportion to it.

电液比例阀控制器作为电液比例控制系统的重要组成单元，其功能是对比例阀提供特定性能的电流，使比例阀控制的液体流量或压力连续成比例地受到控制。

This thesis DESign steel wire tension control system of Steel Billet Grinding Machine, and establish mathematical model of every component in electro-hydraulic proportional valve control dissymmetry hydraulic cylinder servosystem and the load with large inertia and flexibility system of Grinding Machine. Through the medium of matlab/simulink simulation, this thesis mostly analyses Pre-load impact of steel wire stress. Compare with the emulation result of non-feedback, force feedback, displacement feedback, thereby educe reliable conclusion.

本文设计了钢坯修磨机钢丝绳张力控制系统，并且对电液比例阀控非对称液压缸伺服系统的所有液压元件和修磨机柔性负载系统进行了建模，通过MATLAB／SIMULINK仿真，主要分析了预紧力对钢丝绳受力的影响，而且对开环无反馈、力环反馈、位移反馈的仿真结果进行了比较、得出了可靠的结论。

The company, founded in 1978, has 20 years of history, specializing in the production of hydraulic cylinders, hydraulic pumping station pneumatic system of professional manufacturing company.

本公司创建于1978年，已有二十多年历史，是专业生产液压油缸气缸、液压气动系统泵站的专业制造公司。

In order to design lighter and faster hydraulic excavator, a rigid-flexible hybrid modeling method based on rigid multi-body dynamics and finite element method was put forward to study the dynamic characteristic of hydraulic excavator in its whole working cycle. The working equipment with characteristic of time-varying structure was taken as research object, and radial acceleration was computed as tags of key load.

为适应液压挖掘机高速、轻量化的要求，以具有时变固频特性的液压挖掘机工作装置为研究对象，提出了以角加速度判断时变结构的关键工况，利用刚性多体动力学和有限元方法对液压挖掘机在整个作业循环中的动力学特性进行建模和分析。

As one of the key components of water hydraulic system, water relief valve plays an important role in water hydraulic system.

纯水溢流阀是纯水液压系统的关键部件之一，其性能对纯水液压系统的性能有重要的影响。

This article simply recommends a hydraulic structure for river closure and sluice— rubber dam ,and its application on spillway and riverway to illuminate that rubber dam is a effective and economic hydraulic structure and a efficacious way to abate the state of water shortage.

简要介绍了一种有效的截流蓄水的水工建筑物——橡胶坝，并对其在水库溢洪道上和河道上的应用作了简单的介绍，说明橡胶坝是一种有效、适应性很强的经济坝型，是缓解缺水状态的一种行之有效的办法。

Aimed at the frame riveted joint hydraulic pressure riveter and its system, we drafted the hydraulic pressure riveter system principle of work.

本文针对车辆车架的铆接，进行了液压铆枪及其系统的设计。拟订了液压铆枪系统的工作原理图。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。