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电气转速信号装置
Electrical rotating speed signal equipment
价格：￥0.00
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锅炉灭火保护装置
Furnace safeguard supervision system
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电力系统二次电路用控制及继电保护屏(柜、台)基本试验方法
Basic testing method for control and protection panel (cabinet、desk) of secondary circuit of power system
价格：￥0.00
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综合重合闸装置技术条件
Specification for combined recloser equipment
价格：￥0.00
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冲击继电器
Impulse relay
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两个输入激励量的方向继电器及功率继电器
Directional relays and power relays with two input energizing quantities
价格：￥0.00
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电磁式中间继电器可靠性指标及试验方法
Reliability index and test method for magnetic auxiliary relay
价格：￥0.00
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普通中间继电器
Auxiliary relay
价格：￥0.00
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快速中间继电器
High speed auxiliary relay
价格：￥0.00
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延时中间继电器
Auxiliary relay with a short delay
价格：￥0.00
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