在无闭轨Lienard系统完整拓扑分类的基础之上,证明了Q轨线结构的实现性,并给出相应的每一种拓扑结构具体实现的充分条件.
Lienard systems without a closed orbit were given a complete classification.Basing on it,this paper prove that the Q structures can be realized and give the sufficient realization conditions.