研究表明：在这种新型镍铸铁中除了石墨和奥氏体基体外，还有合金渗碳体存在；
Investigation showed that, in this new nickel cast iron, besides graphite and austenitic base, had yet alloying cementite.
研究表明：在这种新型镍铸铁中除了石墨和奥氏体基体外，还有合金渗碳体存在；
Investigation showed that, in this new nickel cast iron, besides graphite and austenitic base, had yet alloying cementite.
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