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本文用ＤＲＡＬＰＨＡ程序计算了一套钢铁体系的理论α系数，对钢铁中１２种元素间的吸收－增强效应进行了数学校正，在较宽的浓度范围内对钢铁成分进行了分析。该方法具有通用性强，所需标准样品少以及校正结果准确等优点。
In this paper, the theoretical Alpha coefficient of a set of steel systems was calculated by the DRALPHA program. The absorption-enhancement effects of 12 elements in steel were mathematically corrected and the steel compositions were analyzed over a wide range of concentrations. The method has the advantages of high universality, few required standard samples and accurate calibration results.