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计数继电器 电子式计数器
Counting relay--Electronic counter
价格：￥0.00
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接触器式继电器
Contactor relays
价格：￥0.00
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塑料外壳式断路器可靠性试验方法
价格：￥12.00
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JRW-130M型有可靠性指标的微型密封直流电磁继电器详细规范
Detail specification for model JRW-130M microminiature d.c.hermetically sealed electromagnetic relays established reliability
价格：￥0.00
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船用保护继电器
Protective relay in ships
价格：￥0.00
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JMW-270M型有可靠性指标的微型密封磁保持继电器详细规范
Detail specification for model JMW -- 270M microminiature hermetically sealed magnetic latching relays established relilability
价格：￥0.00
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JRC-200M型有可靠性指标的超小型(15.5×8.2×8.2) 密封直流电磁继电器详细规范
Detail specification for model JRC-200M subminiature (15.5×8.2×8.2)d.c.hermetically sealed electromagnetic relays established reliability
价格：￥0.00
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电力系统保护、自动继电器及装置 通用技术条件
价格：￥0.00
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