不同用户之间的传统水权交易可能会带来第三方影响，因为这会减少中间流和下游的入流。

Traditional water right trading between different users may bring third-party effects as reducing the instream flow of the intermediate stream and downstream.

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现在，让我们看一下图20，并注意流的中间部分。

Now, considering the middle part of the flow, let's look at Figure 20.

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然而带电火山灰是在厚重的火山羽流中间被发现的，而不是在边缘。

But the electric volcanic ash was found in the middle of the thick plume, not on its edges.

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