有限元分析表明，轴承内部存在三个应力集中区域。
Finite element analysis shows that there are three stress concentration areas inside the bearing.
可以通过应力场数值模拟得出的应力集中区来确定有效预测距离的范围。
The available scope of prediction distance can be determined in light of the stress concentration ascertained by numerical simulation for stress field.
用金属磁记忆检测技术可有效判断套管的应力集中区域，为套管损坏进行早期诊断。
Metal magnetic memory testing technique can effectively distinguish stress concentration zone of casing, which can develop early diagnose for casing damage.
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