液压

In this paper, hydraulic impact that caused by the hydrodriving vibration compactor in the course of the starting vibration and the measures of reducing the hydraulic impact were studied.

本文对液压传动振动压路机起振过程的液压冲击机理及其防治措施进行了研究。

The drive system adopts 5 independent drive mechanisms and a common drive mechanism, therefore both the working space and cost are reduced. In the design of the control system, the hydraulic servo technique and modern control technique are applied. The hydraulic stepless variable speed device adopts compound open and closed static pressure drive pattern, ensuring the smoothness of the drive.

其中的传动方案设计中采用5个独立的传动系统和1个共用的传动系统，既节约了空间和成本，又满足了技术要求；控制系统设计中运用了液压伺服技术和现代控制理论技术；液压无级变速装置采用闭式和开式静压传动系统相结合的方式，传动系统平稳，波动小。

Hydraulic cylinder will be able to provide the hydraulic-mechanical energy conversion device called actuators.

将液压缸提供的液压能重新转换成机械能的装置称为执行元件。

Its performance determines the security and cosiness of train. With the advancement of railway'speed, the self-made hydraulic damper can't satisfy the requirement of high performance hydraulic damper.

由于铁路的提速和城市轨道交通的迅速发展，凸显出对高性能液压减振器的需求，但国内生产的液压减振器还不能满足这种需求，这种状况是由于减振器试验设备落后造成的。

The design methodology and structure of hydraulic booster test stand are presented on the basis of analysis of the operation principle and parameters of the hydraulic booster used in the steering system of DFH1002/1202 crawler tractor.

文摘：在对东方红1002/1202履带拖拉机转向用液压助力器的工作原理和技术参数分析的基础上，阐述了该液压助力器试验台的设计方法和基本构成。

The company's construction machinery program comprises complete tower crane, truck crane, hydraulic excavator, dumper truck, hydraulic rope excavator, wheeled loader, crawler tractor and loader, pipe-laying machine, concrete mixing plant and truck mixer model lines.

公司建筑机械计划包括完整的塔式起重机、车载式起重机、液压挖掘机、自卸翻斗车、液压吊管机、轮式装载机、履带式拖拉机与装载机、管路铺设机、混凝土搅拌站与搅拌车系列。

Is the design, manufacture and operation of fast-joints, hydraulic cylinders, cylinder, and the slide gate machinery and other products of the joint-stock enterprises.

湖北新叶液压机械股份有限公司是以设计、制造和经营快换接头，液压缸、气缸、及滑动水口机械等产品的股份制企业。

The hydraulic system is made up of hydraulic pumping station and related oil pipeline, cylinder etc. The oil pipeline is fixed on site.

液压系统是由液压泵站和相关输油管道缸等石油管线是固定的地盘。

The creep phenomenon of slow moving oil cylinder of hydraulic packer badly influences the work quality of the hydraulic control system.

液压打包机油缸的低速爬行现象严重影响液压控制系统的工作质量。

Based on the ESand modern design methods such as FEM, structural optimization etc., a set of software about the CAD of hydraulic cylinder for hydraulic press is developed.

本文针对液压机用液压缸，在AutoCAD R14平台上开发了一套以专家系统和优化设计为支撑软件的液压缸CAD系统——《YYGCAD2.0》。

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。