点估计值 meaning in Chinese

point estimate

In the presented method , the point estimations of the model parameters , aandb in the new model , are given by the least square method . the confidence interval for the parameter b is given as well . an engineering illustration is used to compare the result of the presented method with those of amsaa - bise model and duane model
该模型充分考虑了增长过程中的各种可得信息，采用非参数方法得到多台系统在各同步停止试验时刻的可靠度，并利用最小二乘法拟合求得该模型中参数a ， b的点估计值，以及b的置信限。
In the dependability improvement process , we used many kinds of methods , such as dependability improvement analysis , dependability forecast , fault modeling effect analysis , dependability qualification test etc . it verified the evident improvement in the jyl - 6 weather radar ? dependability . the point estimate value is improved from 77 . 7 hours to 432 . 4 hours and the mtbf value reaches 144 hours . in our country , it is the first time that the airborne radar ? dependability criteria exceed 100 hours
在可靠性增长过程中通过可靠性增长方法分析、可靠性预计、故障模式、影响分析及可靠性鉴定试验验证等手段证实可靠性增长后， jyl - 6气象雷达可靠性指标点估计值由77 . 7小时提高到432 . 4小时， mtbf置信下限达到144小时，在国内实现了机载雷达可靠性指标首次突破100小时。