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钢和铸铁都有共析、亚共析和过共析这三种组织。
Both steel iron and cast iron have the structures of eutectoid, hypoeutectoid and hypereutectoid.
youdao
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钢和铸铁都有共析、亚共析和过共析这三种组织。
Both steel iron and cast iron have the structures of eutectoid, hypoeutectoid and hypereutectoid.
youdao