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對(duì)于超高強(qiáng)度鋼(如D406A,,抗拉強(qiáng)度1670MPa),,切削速度中系數(shù)怎么確定,?* r/ U8 A8 [0 y; k3 \6 X9 I
切削力中系數(shù)怎么確定,?
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