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直流电机电枢绕组匝间绝缘试验规范
Test specifications of interturn insulation of armature winding for DC electrical machines
价格：￥0.00
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普通电源或整流电源供电直流电机的特殊试验方法
Specific test methods for d.c.machines on conventional and rectifier-fed supplies
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永磁式低速直流测速发电机通用技术条件
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永磁直流电动机产品质量监督抽查实施规范
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Z系列中型直流电动机技术条件
Specification for the Z series of medium size DC motor
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轧机辅传动直流电动机
Specification for mill auxiliary DC motors
价格：￥0.00
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永磁直流电机产品质量监督抽查实施规范
价格：￥0.00
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