中微子振荡的复杂程度使人们认为有可能中微子振荡与其反粒子(即反中微子)是不同的。

This level of complexity opens the possibility that the oscillations of neutrinos and their anti-particles (called anti-neutrinos) could be different.

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电力系统是典型的非线性系统，存在着复杂的混沌振荡，它威胁着系统的安全稳定运行。

Power system is a typical nonlinear system where complicated chaotic oscillations exist and threaten the secure and stable operation of power systems.

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由于电力系统的日趋复杂和庞大，电力系统除了因负阻尼引起的低频振荡外，还存在PSS不能消除的混沌振荡的危机。

Because of power systems being more and more complicated, besides low frequency oscillation by minus damp, there is also chaos oscillation that can not be dispelled by PSS in power systems.

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