It has been proved in experiments that these methods not only improve the efficiency of the hydraulic system, but also the controllability of excavator.
试验证明，这些措施的采用，不仅提高了液压系统效率，而且使挖掘机的操纵性得到明显提高。
The hydraulic fluid viscosity, the volumetric efficiency and the hydraulic system working efficiency drops, divulging increases, even causes the mechanical device to be unable the normal work.
液压油黏度、容积效率和液压系统工作效率均下降，泄漏增加，甚至使机械设备无法正常工作。
The optimal hydraulic design can effectively improve the outlet flow pattern of suction box to ensure better flow conditions for pump and raise the efficiency of pumping system substantially.
进水流道水力设计优化可有效地改善进水流道出口流态，确保水泵有良好的进水条件，大幅度提高水泵装置效率。
To improve the precision and the efficiency in straightening drill pipes, we make a research in the control system of the automatic hydraulic straightening machine.
为了提高钻具校直的精度与效率，我们进行了全自动液压校直机控制系统的研究。
In order to improve the efficiency of hybrid power system applied in hydraulic excavator, a parameter matching method was developed to optimize the power system.
为了提高液压挖掘机混合动力系统的效率，提出了一种对其动力系统进行优化的参数匹配方法。
The result shows that the system model established in the paper is basically correct and electric brake has many advantages over hydraulic brake in actuating response, braking efficiency and etc.
结果表明系统的模型是基本正确的，全电刹车系统在作动响应及刹车效率等方面均比液压刹车系统有较大提高。
The low efficiency of a hydraulic system is mainly caused by the power mismatching its load.
功率不匹配是造成液压系统效率低的主要原因。
Water hydraulic drive system has some advantages of oil hydraulic transmission such as large power, high efficiency and compact structure as well as the unique advantage of environment-protection.
水压驱动系统既保持了油压传动传递动力大、效率高和元件体积小的优点，又兼有环保的积极作用。
From the simulation results, it is clear that the power matching system using double-pump can improve efficiency of the CVT hydraulic system greatly.
计算表明，采用的双联泵功率匹配系统能有效提高CVT液压系统效率。
This paper not only discusses all kinds of the loading forms and system efficiency of the life test bed for hydraulic elements, such as oil pump, oil motor and oil crock.
本文对油泵、油马达、油缸寿命试验台的各种加载形式及系统效率进行了分析，并导出了各种加载形式系统效率的一般表达式。
The paper presents an on-line condition monitoring and diagnosis system based on embedded system, which can improve the efficiency and reliability of hydraulic system for engineering machinery.
为了提高工程机械液压系统的使用效率和可靠性，提出了一种基于嵌入式系统平台在线状态监测与故障诊断系统。
The primary air fan-coil system is a system form that is used widely, whose water system hydraulic optimization is an important mean of advancing design work quality and efficiency.
风机盘管加新风是空调系统中广泛采用的一种空调系统形式。其风机盘管水系统管网水力优化是提高空调系统设计质量和运行效率的重要手段。
The key parameters of bulldozers' traveling hydraulic system, the slip ratio, the efficiency of the hydraulic system, power-to-weight ratio and force-to weight ratio, are studied.
研究了全液压推土机液压行驶驱动系统的关键技术参数——滑转率、效率、牵引比和比功率；
Hydraulic drive system can reduce the hydraulic shock impact on the efficiency of the whole machinery by the different ways.
液压传动可以通过不同方式来降低液压冲击对整机效率的影响。
This paper will discuss an intelligent large-scale hydraulic turbine type design system, which has raised the engineers' design efficiency.
把基于实例的推理技术引入水轮机选型设计，探讨了一个基于人工智能技术的水轮机选型设计系统。
Hydraulic system: advanced hydraulic system, high quality hydraulic components assembly process strictly, ensure the hydraulic system of high efficiency and durability.
液压系统：先进的液压系统，高品质的液压元件严格的装配工艺，保证液压系统的高效率和耐久性。
This is an important problem how to accessible lower waste and high efficiency in the hydraulic system.
在液压系统中达到低消耗、高效率是一个值得重视的问题。
The pump controlled variable displacement hydraulic system works together with the electronic proportional control system, high efficiency, energy saving and precise control.
泵控变量液压系统，与电比例操作系统紧密结合，节能高效，控制精确。
The hydraulic system has high efficiency, saving in energy and pressure-maintaining and overload protection functions.
本发明的折弯机液压系统具有高效、节能的特点，还具有保压、过载保护的功能。
The test-bed is designed for the inspection of new plane hydraulic system and improves the old one's disadvantage such as that the technology level drops behind and the inspection efficiency is low.
飞机液压附件综合试验台是针对目前装备使用试验台技术水平落后、设计效率低下等问题和满足我国引进新一代先进飞机液压系统检测需求设计而成。
It adopts German technology of air-hydraulic boosting driving system, freely change between two stroke or three stroke for high efficiency and energy saving.
采用德国技术设计的气液增力主驱动系统，可进行二行程与三行程自由切换，节能高效。
It adopts German technology of air-hydraulic boosting driving system, freely change between two stroke or three stroke for high efficiency and energy saving.
采用德国技术设计的气液增力主驱动系统，可进行二行程与三行程自由切换，节能高效。
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