以下为句子列表：
英文: A brief description of the operation of overhead traveling cranes for water power station and development of crane electric control technologies is given, and two practical combination operation systems of two overhead traveling cranes for water power sta
中文: 摘要根据国内水电站机房用桥式起重机的工作特点，结合起重机电控技术的发展，介绍了2种切实可行的起重机并车作业电气控制系统，即转换开关并车系统和可编程序控制器(PLC)通讯并车系统。
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英文: Abstract Taking the electric control sircuit of the flanging machine as an example,this single electromagnet directional control calce is used to design the electric control circuit with several sequential cylinders.
中文: 摘要本文以卷边机电气控制回路设计为例子来说明使用单电磁铁换向阀进行多气缸顺序动作电气控制回路的设计方法。
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英文: All the key mechanical parts and electric control system are imported components.
中文: 关键机械零部件，电气控制系统均采用进口件。
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英文: Home trade(except some regulation), it invests, manufacturers various cleaning machine, pump, valve, complete set water supply equipment, air compressor, electric welding machine, Electric Control Cabinet, electric wires and other relative service.
中文: 国内贸易(除专项规定)，企业投资，生产制造各类清洗机、泵、阀、成套供水设备、空压机、电焊机、控制柜、电线电缆、以及相关产品的服务。
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英文: If by their ticket enforcement agencies use the power, control valves can be divided into pneumatic, electrical, fluid movement three, namely to compressed air to power sources pneumatic - valve to call for the engine electric control valves for the liqui
中文: 如果按其所配执行机构使用的动力，控制阀可以分为气动、电动、液动三种，即以压缩空气为动力源的气动调节阀，以电为动力源的电动控制阀，以液体介质(如油等)压力为动力的电液动控制阀，另外，按其功能和特性分，还有电磁阀、电子式、智能式、现场总线型控制阀等。
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