关键词 快关蝶阀 ; 液压执行器 ; 维护 ; 维修 [gap=356]Key words : rapid cut2off butterfly valves ; hydraulic actuator ; vindication ; maintenance
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6）液压产品（Hydraulic products ), 主要有柱塞泵（Piston pumps）,齿轮泵（Gear pumps ）液压执行器（ Hydraulic Actuators ）。
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陆地车辆用气动或液压线性执行器 pneumatic or hydraulic linear actuators for land vehicles
非陆地车辆用气动或液压线性执行器 pneumatic or hydraulic linear actuators for non-land vehicles
液压传动。线性执行器中往复式动力密封设备。泄露的试验测量和报告方法。
Hydraulic fluid power - reciprocating dynamic sealing devices in linear actuators - method of testing, measuring, and reporting leakage.
RACO执行器提供可靠性，环境安全保护和经济的解决方案，取代了液压和气动系统。
RACO actuators offer reliable and environmentally safe and economical solutions replacing hydraulic or pneumatic systems.
电动执行器与液压缸：关于铜斑蛇犁是上下移动由直线电机驱动器设置。
Electric actuators vs. Hydraulic Cylinders: the plow on the CopperHead is moved up and down by a set of electric linear actuators.
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