通过对图的密度矩阵简单的组合条件(“度数条件”)判断图的密度矩阵的可分性。这个条件直接与PPT判据相联系。
We test the separability of the density matrix by researching the simple combinatorial condition (the "degree condition"), the condition is directly related to the PPT-criterion.
利用等温回火实验，采集了淬火钢在不同条件下回火时的硬度数据。
The hardness data of quenched steel under different conditions were collected utilizing austempering tests.
结果表明，只要等量差分段取得足够小，就可获得符合边界条件的高精度数值解。
It shows high precise numerical solution that agrees with the boundary conditions can be obtained as long as the equal difference segment is small enough.
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