concentration of stacking faults

例句：

1. 1.The engineer analyzed the concentration of stacking faults in the machine.
   工程师分析了机器中堆垛缺陷的集中程度。
2. 2.The study found that the concentration of stacking faults could affect the performance of the machine.
   研究发现，堆垛缺陷的集中程度会影响机器的性能。
3. 3. The engineer proposed a solution to reduce the concentration of stacking faults in the machine.
   工程师提出了一个解决方案来减少机器中堆垛缺陷的集中程度。