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n.过共析体;高共析质
1、Both steel iron and cast iron have the structures of eutectoid, hypoeutectoid and hypereutectoid.───钢和铸铁都有共析、亚共析和过共析这三种组织。
2、Hypereutectoid steels are steels that contain greater than the eutectoid amount of carbon.───过共析钢是含碳量大于共析量的钢。
3、steel iron and cast iron have the structures of eutectoid, hypoeutectoid and hypereutectoid.───钢和铸铁都有共析、亚共析和过共析这三种组织。
4、This treatment is particularly useful for hypereutectoid steels that must be machined.───此处理方法对必须机加工的过共析钢特别有用。