A integral bed is divided into some slices, and the process of integral bed extraction can be simulated based on the results of differential extraction.

• 将整个积分床划分为多个微分床层，然后根据微分床萃取的实验结果来求解超临界流体萃取传质方程，以实现对超临界流体积分床萃取过程的模拟计算。