the concept of hydro-mechanical drive system is proposed. it is a complex hydro-mechanical system providing both hydraulic drive and automatic control functions and a new technical field and studying trend in hydraulic drive engineering.

the winch adopted valve-controlled proportional speed regulation hydraulic drive and plc control to realize stepless speed change of the winch drum and coordinating control of the cable layer.

管线绞车采用阀控比例调速液压驱动、PLC控制，实现了卷筒的无级变速和排缆器的协调控制。

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in this paper, the author introduce the structure, property, hydraulic drive and electric control system of the large oil press used for pre-bending large-diameter circular tube.

介绍了大直径圆管卷圆前预弯用的大型油压机结构、性能、液压传动和电气控制系统。

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the hydraulic drive and control system is working deep and deep in the ocean with the development of ocean engineering therefore, operating performance and reliability for the hydraulic drive and control system are very important in the deep ocean.

由于海洋工程事业的发展，液压传动及控制系统将逐步地应用于海洋深处，因此，对这些传动及控制系统在海洋深处工作性能及可靠性的检验变得日益重要。

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introducing the frequency converter technique that applied into hydraulic drive and control system, a new generation of plastic hollow shaping machine of high-performance and saving energy with single/ double working post has been developed.

将变频调速技术引入液压传动及控制系统，研制出新一代高效节能变频式液压单/双工位塑胶中空成型机，并在实践中获得应用。

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bosch rexroth will provide project engineering, shipment and installation of the complete hydraulic drive and control systems, as well as the automation for the passenger boarding stations.

博世力士乐将为该完整的液压驱动和控制系统提供项目工程、运输和安装，以及乘客上落站的自动化系统。

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hydraulic drive and control has been widely applied to electronics, computer technology, information technology, automatic control as well as new process and new materials.

液压传动和控制广泛应用了电子技术、计算及技术、信息技术、自动控制技术及新工艺、新材料的新成果。

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the hydraulic drive and control system made up by adjustable guide blades torque is well suitable for mill lifting equipment.

由可调式变矩器构成的液力传控系统适合于矿山垂直起重运输类机械。

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the hydraulic drive and control system of stump cutter robot is introduced in the article.

本文介绍了伐根清理机器人液压驱动与控制系统。

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hydraulic drive and control system of shield screw conveyor

盾构螺旋输送机液压驱动及控制系统

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research progress on faults diagnosis technology of hydraulic drive and control system

液压传动及控制系统故障诊断技术的新进展

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hydraulic servo system is an important component of the control field. it is a new science and technology developed on the basis of hydraulic transmission and automatic control technology.

液压伺服系统是控制领域中的一个重要组成部分，它是在液压传动和自动控制技术基础上发展起来的一门新的科学技术。

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the device is an automatic shaping unit with hydraulic transmission system and electric combination control.

该机为液压传动、电器综合控制的自动整形机。

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the low oil consumption and low gases exhaust of vehicle are achieved by using of technology about hydraulic pressure, transmission and control.

本系统采用液压技术、传动技术和控制技术相结合的方法实现车辆的低油耗、低排放，并有效地提高车辆的动力性能。

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the overall design of the explosives ordnance disposal ( eod) robot as well as its feature and performance were discussed, including the mobile machine, the hydraulic transmission and control system.

阐述了一种军用爆炸物处理移动机器人（EOD）的总体设计及其性能特点，尤其是移动机构、液压传动和控制系统的设计。

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the hydraulic transmission and control technology is playing an important role in modern construction machinery, and increasingly affecting the whole performance of construction machinery.

液压传动及控制技术在现代工程机械中发挥了越来越重要的作用。

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hydraulic poppet valve is one of the most important basic components in hydraulic transmission and control systems. it controls the operation of hydraulic system by controlling the inner flow field.

作为流体传动与控制技术中重要基础元件，液压锥阀通过控制阀内流场流动来实现系统的操作，其内部流场特性直接影响阀的工作性能。

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the centers for disease control and prevention says other studies have reported that laws making public places smoke-free have led to rapid reductions in hospital admissions for heart attacks, but this is the only study that has looked at the effects over a longer period of three years.

美国疾病控制与防病中心表示，其他研究也显示，禁止在公共场合吸烟的法律使得因心脏病发作住院的病人人数迅速减少。不过，这是针对二手烟的影响进行长达三年之久的唯一一项研究。

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what is surprising is why: in a 2011 survey by the centers for disease control and prevention, 82% of parents who didn't vaccinate their children on schedule cited worries about side effects, like learning or behavioral problems.

令人惊讶的是原因。疾控中心2011年的一份调查显示82%拒绝给孩子注射疫苗的家长担心副作用，诸如学习或者行为方面的问题。

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the centers for disease control and prevention says when thomas eric duncan started his trip from liberia to the u.s., he showed no signs of having the deadly ebola virus.

美国疾病控制及预防中心表示托马斯·埃里克·邓肯从利比里亚前往美国的旅程开始时，没有迹象表明他身患致命的埃博拉病毒。

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furthermore, the centers for disease control and prevention and public health experts do not recommend that people in the united states take precautionary measures beyond staying informed.

更何况，从掌握的信息看，疾病防控中心和公共健康专家们也没有建议在美国的人们采取防范措施。

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