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全数字直流传动矿井提升机电控设备技术条件
Specification of the digital DC electric control equipment on shaft hoist
价格:¥0.00
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热带型低压电器技术要求
Environmental technical requirements of low - voltage appliance for tropical use
价格:¥0.00
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气体绝缘金属封闭开关设备带电超声局部放电检测应用导则
Application guidelines for charged gas-insulated metal-enclosure switchgear device partial discharge detection with ultrasonic method
价格:¥0.00
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