Supposing that the intersection of multi-group fractures is treated as the internal boundary, a boundary Element Method of fracture network seepage flow is obtained.

通过将裂隙之间的交线看作为内部边界，推导了多裂隙相交时的边界单元法公式。

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The Medicare buy-in proposal is one element of a multi-pronged strategy a group of 10 moderate and liberal Democrats are developing in a complicated effort to secure the votes needed to pass the health legislation.

NPR: Medicare Expansion Raises Hackles Of Doctors, Insurers