The power system is considered as a dynamic system that performs continuous non linear variation under small amplitude, wide spectrum disturbance.
文中电力系统被看作一个在小幅度、广谱的随机扰动下不断作非线性波动的动态系统。
Based on an analysis of the sources of errors, a linear variation of the stress at each stage was assumed, and a general formula for stress calculation was deduced.
为提高精度，在渐变应力比突变应力更符合实际的基础上提出应力在各时段内线性变化的假定，在此假定下推导了应力计算的一般公式，用于实测应变资料的分析计算。
Based on an analysis of the sources of errors, a linear variation of the stress at each stage was assumed, and a general formula for stress calculation was deduced.
为提高精度，在渐变应力比突变应力更符合实际的基础上提出应力在各时段内线性变化的假定，在此假定下推导了应力计算的一般公式，用于实测应变资料的分析计算。
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