They will be deleted for you when you drop your client reference to them, and they are notconnected to a data graph.
当丢弃对其的客户机引用且未连接到数据图时，会将其自动删除。
2
This paper presents all the connected simple bigraphs whose energy does not exceed 4, and an inequality about the energy of a graph and the number of the edges of the graph.
本文给出所有能级不超过 4的连通偶图 ，并给出关于图的能级与其边的个数的一个不等式 。
3
Is notconnected to the output of its various connectivity graph branch (c).