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凹辊
met. concave roll (【技】主要用于热轧钢板的轧制。考虑到轧制时轧辊受热膨胀,故将轧辊辊身设计成微凹形状,受热后即可变平,以便得到良好的板形。凹面轧辊亦称凹面辊,简称凹辊。)
凹 辊
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