The parent element of TPME was divided into several regions, with each region having its own material; and the cavity in the element was treated as a special kind of material.
将母单元划分成若干区域，每个区域由同一种材料组成，空腔视为一种特殊材料，单元的刚度矩阵通过分域积分得到。
The parent element of TPME was divided into several regions, with each region having its own material; and the cavity in the element was treated as a special kind of material.
将母单元划分成若干区域，每个区域由同一种材料组成，空腔视为一种特殊材料，单元的刚度矩阵通过分域积分得到。
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