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Accurate spread prediction model in alloyed rod rolling by round-oval-round pass sequence
圆-椭圆-圆孔型中轧制合金钢棒材时宽展迭代模型的建立
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Small brass oval headed screws now pass through the bottom of the case securing the spacers.
黄铜椭圆形的小螺丝钉领导现在通过底部的情况下确保间隔.
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