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powder forming
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powder forming
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工学
粉末冶金成形
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powder forming
粉末冶金成形
使松散的粉末转变为具有一定形状、尺寸、密度和强度的粉末坯体的工艺过程。是粉末冶金技术的基本工序之一,具有近净成形特点,是实现粉末冶金材料利用率高和少无切削等优点的关键工序。
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chemolithotrophic autotrophy
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