A lattice vacancy is a simple example of an imperfection . 点阵空位就是不完美性的一个简单例子。
Point defect - a crystal defect that is an impurity , such as a lattice vacancy or an interstitial atom 点缺陷-不纯净的晶缺陷,例如格子空缺或原子空隙。
Another possibility is that the crystal of helium contains numerous defects and lattice vacancies ( yet another effect of the zero - point motion ) 另一种可能是氦的晶体中有许多缺陷和晶格空位(也是零点运动所造成的) 。