By combining equivalent linearization method with harmonic balancing technique, the approximate analytic response was obtained.

将等效线性化法与谐波平衡法相结合，求出了系统的近似解析响应。

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To put this in perspective, during the PC era (which lasted for 20 years) this would have been the equivalent of combining Intel, Microsoft, Dell and Best Buy into one firm, selling one brand.

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