液压

Hydraulic cylinder piston rod connects gate ,the operation principle of manual hydraulic knife gate valve is that through manually handle , manual- driven hydraulic pump makes hydraulic fluid in the upper and lower chamber of hydraulic cylinder to drive gate opened and closed to achieve valve's open and closed.

手动液压刀闸阀由是由液压缸活塞杆连接阀门闸板，其操作原理手动驱动液压泵手柄把液压油通过手动换向阀压入液压缸的上下腔来带动活塞杆做上下动作，从而带动闸板的启闭来达到阀门开关作用。

Trade and Long" brand series products include: automatic dual-precision four-post, unilateral hydraulic cutting machine, precision four-post Hydraulic Cutting Machine, Gantry Hydraulic Cutting Machine, Hydraulic Plane Cutting Machine, Rocker hydraulic cutting machine, such as the top ten series more than 60 varieties, the product best-selling domestic and international markets."

"贸隆"牌系列产品涵括：精密四柱式全自动双、单边液压裁断机、精密四柱式液压裁断机、龙门式液压裁断机、平面式液压裁断机、摇臂式液压裁断机等十大系列六十多个品种，产品畅销国内、国际两大市场。

Characterized by, when the hydraulic cylinder forward, from the hydraulic cylinder on the right and from the left side of the discharge of oil into the hydraulic cylinder, to increase the oil into the mouth of the fuel, hydraulic cylinders can fast-forward, but also to Hydraulic cylinder thrust smaller.

其特点为，当液压缸前进时，从液压缸右侧排出的油再从左侧进入液压缸，增加进油口处的油量，可使液压缸快速前进，但同时也使液压缸的推力变小。

The traditional hydraulic pressure riveter uses the ordinary high-pressured fluid pump, the cylinder body is big, unwieldy, and moreover the current capacity of fluid pumps is big, the power loses in a big way,too.

页数：51液压铆枪被广泛应用于汽车、船舶、锅炉、桥梁、建筑等行业。传统的液压铆枪采用普通的液压泵，液压缸体积大，太笨重，而且液压泵流量大、功率损失也大。

In this dissertation the analysis of the hydraulic rock breaker and rock drill at home and abroad leads to an return oil chamber of a new hydraulic impactor.

液压冲击器是液压凿岩机和液压碎石机主要执行机构，设计的好坏直接影响到液压凿岩机和液压碎石机的性能。

On the basis of analyzing characteristics of double-acting hydraulic hammers, single-acting hydraulic hammers and HHKA hydraulic hammers, this paper founds their mathematics models and makes computer programs to simulate the working process. The simulated result is verified with the tested date.

分析双作用液压锤、单作用液压锤和HHKA型液压锤工作过程中的运动特性和动态特性，建立描述液压锤工作过程的数学模型，编写计算机程序进行计算机仿真，得出液压锤工作过程中运动特性和动态特性的变化规律，并将仿真结果与试验数据分析比较，验证分析方法的正确性。

This paper regards the copper electrolyze anode product line under electricity-hydraulic controlling as its researching object and studies the technology on hydraulic malfunction diagnosis thoroughly, it also analyzes integrate the methods of malfunction diagnosis and the malfunction forms of hydraulic components. Basing on this knowledge, this paper designs a process surveillance system for hydraulic pump of anode product line.

本文以电液控制铜电解阳极生产线为研究对象，具体到生产线液压系统的动力来源——液压泵，对液压故障诊断技术进行了较为深入的研究，对故障诊断的方法、液压泵的故障形式进行了综合分析，在此基础上，设计了阳极生产线生产过程中液压泵的监视系统。

The company is mainly specializing in design,manufacture,installation and maintenance of many kinds of marine hydraulic and electric equipments,such as marine hydraulic steering gear,winch,anchor wind lass,oil box,control station and alarm systems etc;we also can design,manufacture and assemble various customized hydraulic and electric control systems as well as the import and export service for the marine hydraulic and electric equipments.

公司以设计、制造、安装和维修各种船舶液压和电气设备（如液压舵机、液压绞盘，液压锚机、油箱，驾控台，报警系统等）为主要业务，并可承接各种机械液压站和电气控制系统的设计、制造和安装调试，同时可进行各种船舶配套设备的进出口业务。

The definition of multigrade hydraulic oil, specification, components and energy saving were introduced, compared the difference between multigrade hydraulic oil and monograde hydraulic oil, and the marketing demand of multigrade hydraulic oil was presented.

介绍了多级液压油的定义、格、方等内容，对多级液压油的主要标准进行了说明，比较了单级液压油和多级液压油在使用上的差别以及多级液压油在节能方面的研究进展，并对中国未来多级液压油的应用和市场需求作了概述。

The formula concerning how to control the oil contamination of coal mining machine hydraulic system was built based on the theory of the contamination control ,it is shown that the change of the oil contamination is in index regularity.

根据污染控制理论导出了采煤机液压系统油液污染控制方程，由方程知液压系统油液污染度的变化是按指数规律变化的，并分析了影响采煤机液压系统油液污染度的主要因素，提出在液压系统的设计阶段就要考虑液压系统的过滤净化性能，正确控制液压系统油液污染。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。