探讨了确定无差异曲线族的两个重要条件，指出了两条件的等价性，并在此条件下得出结构无差异曲线族的方法。

We discuss two important properties of indifferent curves, point out the equivalence of them and obtain the method of construct the indifferent curve.

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本文讨论了随机等价线性化方法(esl)作为一种对考虑力学参数随机性的非线性滞回结构进行可靠性分析的工具具有的灵活性。

This paper investigates the flexibility of the equivalent stochastic linearization (ESL) method as a tool for reliability analyses of nonlinear hysteretic structures with random mechanical properties.

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等价性检验方法通常包括功能性和结构性的验证方法。

The equivalence check usually includes both functional and structural verifications.

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