In system design, firing system of kiln is a multi-variant coupling non-linear system, which is the difficulty of system control.

在系统设计中，窑炉烧成系统作为一个多变量耦合的非线性系统，是控制的难点。

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Such tight coupling of components increases the danger of “non-linear” outcomes, where a small change has a big impact.

如此紧密的联系使得“非线性”结果风险大大增加，很小的一个变数就会产生很大的影响。

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FCCU (fluid catalysis and cracking unit) is a highly non-linear, time variable, long time delay, intensive coupling, parameter distributed, indefinite and complex system.

催化裂化装置是一个高度非线性、时变、长时延、强耦合、分布参数和不确定性的复杂系统。

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