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精轧孔型
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精轧孔型
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型钢孔型设计
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finishing pass
精轧孔型
在轧制某种产品时,减小轧件断面面积,使轧件的断面形状与尺寸均接近于成品的孔型。又称预轧孔型。
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economic functions of the socialist state
economic geography and public policy
economic geography of forestry
Economic Geography: the Integration of Regions and Nations
economic globalization
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Economic Growth and Agriculture
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