Based on this, the design of casting process was optimized, the solidification process was simulated again, the results of simulation were compared and analyzed.

在此基础上对其铸造工艺进行了修改，工艺优化，又一次进行凝固模拟，对前后模拟结果进行了分析与比较。

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At first, many classes for system were developed in this paper, owing to them, a method to design a chemical process simulation system based on class library was provided.

本文首先设计开发了系统水平上的系统类，在此基础上给出了基于类库的化工过程模拟系统的设计方法。

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Process simulation and design were based on models of extraction and stripping developed experimentally.

本文基于工艺实验建立的萃取与反萃模型，作为过程模拟和设计的基础。

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