To James, steady attention was thus the default condition of a mature mind, an ordinary state undone only by perturbation.

对于James来说，稳定的注意力是成熟个体的普遍特征，普通状态被打破只能源于混乱。

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A method of opening force analytical model was brought forward to solve the dynamic response analysis to pressure perturbation under the steady status.

提出了一种“开启力解析模型”的方法来求解稳态下密封性能对压力扰动的动态响应。

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Perturbation method is used to obtain the bifurcation equation with time-delays, and numerical method is utilized to analyze the effect of time-delays on the steady state response.

首先采用摄动法从理论上推导出时滞动力系统的分叉响应方程，再采用数值模拟的方法研究了时滞参数对系统分叉响应的影响。

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