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[国外标准] ASTM B 401-99 Standard Specification for Compact Round Concentric-Lay-Stranded Aluminum Conductors, Steel-Reinforced (ACSR/COMP)1

P:2009-10-15 21:04:58

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急求求ACSR的美国标准ASTM

tempering - 回火,淬火 (0) 投诉

P:2009-10-16 11:01:47

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voltage increase in steps - 电压逐级升高,逐级升压,逐级升高电压 (0) 投诉

2


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