By recognition of work condition, off-line identification and on-line optimization of parameters, hybrid model can be used to simulate dynamics of complex process correctly in a large scale.

通过工况的识别以及模型参数的离线辨识和在线优化，混合模型可以准确地模拟复杂过程在大范围内的动态特性。

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Algebraic modeling and optimization is now paid more and more attention all over the world and there have been many successful cases which are mostly off-line.

代数建模与优化在世界范围内受到了越来越多的关注，也有了很多成功的案例，但是大部分都是基于离线数据的。

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With the draw ratio of aviation kerosene as the optimization objective, off-line operating optimization has been done by the plant model of process simulation.

利用流程模拟得到的装置模型，对常压塔常一线航煤进行离线操作优化，达到航煤产量最大化的目标。

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