The decay rate of the corresponding strong solution at infinity is also given for some kinds of initial data with exponential decay.

若其初值以指数方式衰退，且空间可微，则此强解在之后的时间内也将以指数方式衰退。

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By using the perturbed-energy method, the exponential decay of the solution is obtained for the nonlinear wave equations with time-dependent coefficients and dissipative boundary condition.

利用能量法证明了具耗散边界条件和时间依赖系数的非线性波方程的能量指数衰减性。

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The spectrum was found to be an exponential decay followed by a stretched exponential decay, with a decreasing width parameter.

发现其动态光散射谱在初始的指数衰减之后是伸展指数衰减。

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The conclusion was the same for drug discovery after the mid-19980s: an exponential decay curve with a slope indicating we were discovering approximately 1 fewer new drugs per year.

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