dynamical stress concentration

例句：

1. 1.The design of this device is aimed at dynamic stress concentration.
   这种设备的设计理念是针对动力应力集中。
2. 2. The engineers found that the dynamic stress concentration in the structure was too high.
   工程师们发现结构中的动态应力集中过高。
3. 3.To improve the performance, the manufacturer has made adjustments to reduce dynamic stress concentration.
   为了提高性能，制造商已经调整了设计以减少动态应力集中。