vacancy bit

• 空位

vacancy bit的用法和样例：

例句

1. 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。
2. The vacancy defects of samples were measured by slow positron annihilation.
   借助慢正电子湮没技术研究了样品的空位型缺陷。