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。
2
So the greenhouse is a multi-variable coupled, time-varying and non-linear complicated system.
因此，温室环境是多变量耦合、时变、非线性的复杂系统。
3
This paper introduces a frequency variable control system for elevator driven by linear induction motor, and this elevator has been tested.