If the carbon content of the steel is known, the proper temperature to which the steel should be heated may be obtained by reference to the iron-iron carbide phase diagram.
如果钢的含碳量已知，钢件合适的加热温度可参考铁碳合金状态图得到。
If the carbon content of the steel is known, the proper temperature to which the steel should be heated may be obtained by reference to the iron-iron carbide phase diagram.
如果钢的含碳量已知，钢件合适的加热温度可参考铁碳合金状态图得到。
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