特征寿命 meaning in English

characteristic life

The count of failure includes that of failure classification and failure pattern ; reliability indicator includes mean time to first failure ( mttff ) and mean time between failure ( mtbf ) ; life indicator includes feature life , center life , and specified life
其中，故障统计包括故障类别的统计和故障模式的统计；可靠性指标包括平均首次故障里程mttff和平均故障间隔里程mtbf ；寿命指标包括特征寿命、中位寿命、额定寿命等。
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。