下面让我们来看看艾滋病的传播速率吧。

Let's just look at transmission rates.

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从而可以得到应力波的传播速率。

Thus, the velocity of stress wave can be calculated.

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从而得到应力波的传播速率。

So the travelling speed of stress wave can be obtained.

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从而得到应力波的传播速率。

So the travelling speed of stress wave can be obtained.

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