认为番茄冻干过程为传热控制，建立了辐射边界的准稳态模型，利用该模型可以较准确的预测升华干燥的时间。
The freeze drying model on the basis of heat transfer processes for tomatoes subject to radiation boundary conditions was founded to predict the time of sublimation dehydration.
当交流系统发生三相不对称故障时，忽略直流系统负序分量的准稳态模型将给交直流混合系统的仿真带来较大的误差。
The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when unbalanced fault occurs in AC system.
对三维准稳态激光重熔问题进行数值模拟，模型考虑了熔池内金属液体的流动和换热。
With the non staggered grids, a three dimensional quasi state laser remelting problem, considering heat transfer and fluid flow, is numerically simulated.
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