以下为句子列表：
英文: A coupler drive system for pumping unit is developed by using the theory of hydraulic drive of coupler.
中文: 摘要运用耦合器液力传动原理，研制成功抽油机耦合器传动系统。
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英文: ACCUMULATOR is an important componentin a hydraulic drive system.Its function is storing pressure,reducing power consumption.
中文: 本产品税品为液压传动系统中必不可少的重要部件。有储蓄能量、稳定压力、减少电耗等功能。
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英文: According to the control rod hydraulic drive mechanism(CRHDM)and the characteristics of its hydraulic cylinder seal structure, the leaking ways of the hydraulic cylinder piston ring seal were analysed, its theoretical calculation model was built and its f
中文: 摘要根据控制棒水压驱动机构水压缸活塞环密封结构的特点，分析了水压缸活塞环的泄漏途径，建立了活塞环密封泄漏流阻的理论计算模型，并结合水压缸活塞环密封处的压差计算模型，推导出水压缸密封结构的流阻计算公式。
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英文: Based on the analysis of the advantage and disadvantage of both overseas and domestic closed cold forging equipment, closed cold forging equipment consisting of a NC precise forging hydropress and a set of hydraulic drive female die has been developed, he
中文: 摘要在分析了国内外现有闭式冷精锻装备的优缺点的基础上，开发研制了数控精锻液压机和液压传动凹模模具装置，构成闭式冷精锻设备，实现了圆锥齿轮等轿车关键零件的精密模锻生产。
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英文: Slag discharge mechanism: wet slag discharge is made from both sides with hydraulic drive of ratchet wheel and detent.
中文: 清灰机构：采用液压驱动棘轮、棘爪装置，湿式双侧除灰。
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