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根据热传导理论，用规一化三维导热公式计算出一组无量纲曲线并给出一个简单实用的导热计算方程。在均匀强度矩形光束（ＵＩＲＢ）辐照情况下，用该方程和相应曲线可方便地确定具有三维计算精度的相变热处理工艺参数．
According to the theory of heat conduction, a set of dimensionless curves are calculated by the normalized three-dimensional heat conduction formula and a simple and practical heat conduction calculation equation is given. In the case of UIRB irradiation, the phase transition heat treatment process parameters with three-dimensional calculation accuracy can be easily determined by using this equation and corresponding curves.