life estimation的用法和样例：
例句
- A frequency domain method for predicting the fatigue life of notched specimens under random vibration loading is presented.
提出了一个考虑应力集中和疲劳极限影响的缺口件频域随机振动疲劳寿命估算方法。 - Both single and double paramete criteria for fatigue life assessmint under multi-axial cyclic loading have been discussed.
文中就目前所采用的单参数及双参数疲劳寿命估算准则进行了评述。
