characteristic life meaning in English

特征寿命

Moreover , the data processing method of accelerated life test is used to solve the problem of the reliability data conversion under different operating status to liquid rocket engine . and the counter power law model is introduced as the relation model between the characteristic life and the combustion chamber pressure , the accelerated life equation of the constant stress accelerated life test for the weibull distribution is obtained , through the accelerated life equation , the reliability estimate of different combustion chamber pressure is calculated
再次,采用加速寿命试验的数据处理方法对液体火箭发动机不同工况下可靠性数据折算的问题进行了研究,引入逆幂律模型作为特征寿命与燃烧室压力之间的关系模型,得到了weibull分布下恒定应力加速试验的加速寿命方程,并通过加速寿命方程折算出不同室压下的可靠度估计。