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开坯孔型
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开坯孔型
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breakdown rollpass
开坯孔型
把方形或矩形的大断面钢锭或钢坯轧成小断面的方坯或板坯,使轧件的断面面积缩小,长度增加,为后面孔型提供合适轧件尺寸的孔型。又称延伸孔型。
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gravimetry method
gravimetry metrology
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gravitating disk
gravitation
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gravitational astronomy
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gravitational deflection of light
gravitational differentiation
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