本文首先考察两种对立关系，进而提出稳定多边系统概念，并讨论了稳定多边系统的性质；
This paper defined two kinds of opposite relations, introduced the concept of steady multilateral system, and discussed its property.
本文首先考察两种对立关系，进而提出稳定多边系统概念，并讨论了稳定多边系统的性质；
This paper defined two kinds of opposite relations, introduced the concept of steady multilateral system, and discussed its property.
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