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阻尼质量弹簧: m=1 , k=4 , c=2 。识别阻尼类型并写下 \ddot x + 2\dot x + 4x = 0 的通解。
阻尼质量弹簧: m=1 , k=4 , c=2 。识别阻尼类型并写下 \ddot x + 2\dot x + 4x = 0 的通解。
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