单词：concentration factor
concentration factor的用法和样例：
例句
- All stress concentration factors so far presented in this book discussed the geometric or full theoretical values.本书内所提到的全部应力集中系数都是几何的或纯理论值。
- Finally, the stress concentration factors of different notches are calculated by using these formulae.最后，利用该公式计算了弯曲载荷下切口的应力集中系数。
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