A two-dimensional unsteady temperature field calculation mathematical model has been set up by analyzing ingot solidification process and the program has been developed.
在分析锻造用钢锭凝固过程特点的基础上，建立起钢锭铸造凝固的二维非稳态温度场计算数学模型，并编制程序。
A direct calculation mathematical model to fall exponent for using computer is put forward and applied for rating curve analysis in Luoshan Station at middle reaches of the Yangtze River.
本文提出了落差指数直接解算的数学模型，并应用于长江中游螺山站的水位流量关系分析。
A geometry based mathematical model is established for the calculation of reliability index by use of the fuzzy random reliability theory for slope stability analysis.
将模糊随机可靠度理论应用于边坡的稳定分析，建立了基于几何法计算广义可靠指标的数学模型。
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