By using Z transform of a function, the general response formula for the general model of discrete singular systems is derived.
利用函数的Z -变换，获得了离散广义系统模型的一般响应公式，由此得到该模型的局部可达性与局部能控性的充分必要条。
In general, the dynamic math model of a thermal process is an approximate transfer function obtained from step response curve which is figured through field experiment.
热工过程的动态数学模型通常通过现场试验作出它的阶跃响应曲线，然后从阶跃响应曲线得出近似传递函数。
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