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。
This unit may NEVER be connected to any existing heating system or component (s) previously used with a non-potable water heating appliance.
不要把本款热水器与任何原有的非饮用水加热系统或加热装置相连接，以免有毒化学成分进入本款热水器。
In this paper, a kind of non-parameter model is constructed with the unit step response of the nuclear reactor neutron dynamic system.
利用核电站反应堆中子动力学系统的单位阶跃响应数据，得到了该系统的非参数模型。
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