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电工仪表用零部件 止挡
Elements for electrical instrumentation -- Stopper
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电工仪表用零部件 平衡锤
Elements for electrical instrumentation -- Balance weight
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电工仪表用零部件 游丝支片
Elements for electrical instrumentation Chips supporting spiral spring
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电能表用脉冲计数器
Pulse register for electricity meters
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微型电压互感器
Miniature voltage transformer
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微型电流互感器
Miniature current transformer
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氧化锌避雷器阻性电流测试仪通用技术条件
General technical conditions of resistive current tester for zinc oxide surge arrester
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数字高压表检定规程
Verification regulation of digital high voltmeter
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变压比测试仪通用技术条件
General technical specifications of the transformation ratio tester
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高压介质损耗测试仪通用技术条件
General technical specifications of the high voltage dieletric loss detector
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