一个目前的例子就是停车场结构，其中运用智能停车表发送有关停车空位的信息给驾驶人员。
One current example is offered by parking structures employing smart parking meters that can send messages to drivers about empty Spaces.
本文利用离散变分法（DVM）和集团模型研究了铝中氢—空位复合体的电子结构和几何构型。
The discrete variational method (DVM) and cluster model are used to study the electronic structure and atomic configuration of the hydrogen-vacancy complex in aluminum.
结果表明：氧空位的存在与变化不仅影响着氧化锆相结构的稳定性，而且影响着氧化锆的低温相变过程。
It is found that the increase of oxygen vacancy content can increase the instability of the metastable tetragonal phase and accelerate the transformation to monoclinic zirconia.
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