请帮助修改。急等！！！！

We now take account of this to obtain a somewhat different type of instability, known, in the case of decay to plasma and ion sound waves, as the oscillating two-stream instability, and discovered by Tom.
为了获得类型略有不同的不稳定性，现在我们考虑这个问题，众所周知的，至于对等离子体和离子声波的衰减，就像由Tom发现的振动二溪不稳定性一样。
请各位帮助修改。谢谢！

you ’’d better use two sentences.

And I think there is some logistic problem with your content.

Please tell about the logistic problem in detail. Thanks.

请各位帮帮忙。谢谢。