f mass x acceleration

ft f (t )] f

方程题ppt 2 2/2 0 2 4 t(s) y acosφ0 =a/2 ωasinφ0 0 0 x x

高斯函数 f (x) = e 性质: ∞ ax2 -∞ ∫e ax2 dx = π a -∞ ∫e

模拟洗衣机中的振动和噪声

11-2光的电磁理论ppt

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