主要分析了二段生物接触氧化法处理机理及其主要工艺参数设计；
This paper analyses the wastewater treatment's mechanism of two-stage biological contact oxidation process and the design for its main process parameters.
系统主要功能包括：通用铸造工艺参数设计、实用冒口设计、浇注系统设计等。
This system consists of the common casting process parameter design module, the practical riser design module, the gating system design module, and soon.
通过误差逆传播(BP)网络实现了逆映射，建立了工艺参数设计的神经网络模块。
The inverse mapping is achieved through BP network, and neural network modul is constructed for designing process parameters.
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