我们也有一个径向节点，但是这里也有一些区别，是我们需要记住的，那是今天报告的焦点。

But there's also some differences that we need to keep in mind, and that will be the focus of a lot of the lecture today.

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在DPF - 40等离子体焦点装置中，首次观测到径向运动电流壳层的一种不稳定现象，即不稳定模式。

An instability phenomenon of the current sheath implosion, namely the unstable mode, has been observed in the DPF 40 plasma focus device.

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