The algorithm makes use of the characteristic of Lagrange relaxation method, and finds multicast tree satisfying constraint by constructing closure graph and making relaxation to this graph.

该算法充分利用拉格朗日松弛方法的特点，通过构建封闭图，对封闭图进行拉格朗日松弛求得满足条件的多播树。

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In addition, if changes to the visual tree force updates to the composition scene graph, your event handler method is also called.

此外，如果视觉化树状结构的变更强制更新复合场景图形，也会呼叫事件处理常式方法。

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This paper is an attempt to further improve the theory, of integral sum graph by introducing an integral sum labeling of the lobster tree through sequential labeling method.

为进一步完善整和图理论，采用顺序标号法给出龙虾树的一种整和标号。

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