因为模糊逻辑控制器的控制信号是由系统的响应行为而不是由其分析模型决定的，所以机器人的开环响应可以用一系列二阶系统来描述。
Because the signal processed by fuzzy controller is based on system behavior rather than its analytical model, open loop responses of a robot are described by a set of second order systems.
二阶因子分析表明，五因素模型又可划分为心理因子和社经因子。
The second order factor analysis indicated that the five factor model could also be divided into a psychological factor and a social economic factor.
首先，利用自相关系数和偏自相关系数图以及二阶自回归模型对机动车辆保险的周期存在性进行定性与定量分析。
Firstly, the thesis tests the existence of U/W cycle in Chinese motor insurance through the analysis of the autocorrelation and partial autocorrelation and the test of two order autoregression.
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