根据正电子湮没寿命实验的结果和总能量极小原理，确定了V和N在V - N -空位复合体中的最佳占据位置。
Optimum location of nitrogen and vanadium in the V-N-vacancy complex is determined, according to the result of the positron annihilation lifetime experiment and minimizing the total energy.
辐照过程中不同尺寸的空位团之间发生了相互转化，这一点可通过正电子湮没寿命谱的测试结果去验证。
There may be transformation between different sizes of vacancy clusters which can also be seen in the results of Positron Annihilation Spectroscope (PAS).
借助慢正电子湮没技术研究了样品的空位型缺陷。
The vacancy defects of samples were measured by slow positron annihilation.
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