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ZY系列电动转辙机
ZY series electrohydraulic switch machine
价格:¥0.00
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铁路手信号灯技术条件
Technical specification for railway hand signal light
价格:¥0.00
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产品图样及设计文件.标准化审查
Drawings and design documents of product-Standardization examination
价格:¥0.00
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产品图样及设计文件.完整性
Drawing and design document of product - General principles
价格:¥0.00
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交流电气化铁道对调幅广播收音台无线电干扰的防护距离
Protecting distance of radio interference of AC electric railway to AM broadcasting radio stations
价格:¥0.00
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铁路行车事故统计代码
Train operation accident coding
价格:¥0.00
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铁路常用金属电刷镀通用技术条件
General specification of electrobrush plating for commonly-used metal in railway
价格:¥0.00
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