从加强成本管理的角度出发，分析了原油单位生产成本特点，建立了原油单位生产成本的阶跃灰色模型。
From the reinforced cost management, it analyzed the characteristic of the crude oil unit cost, and the stepped grey model of the crude oil unit production cost was established.
改进算法可有效减小截取被控对象时间响应(单位方波或单位阶跃响应)有限序列为内模的截断误差。
The improved algorithms can reduce significantly the truncated error of the truncating unit pulse (or step) response time-sequence of the controlled process as the internal model.
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。
In this paper, a kind of non-parameter model is constructed with the unit step response of the nuclear reactor neutron dynamic system.
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