prfs meaning in English

中华万向椎弓根复位固定系统

But , the prfs obtained are still not satisfied for the goal of tritium permeation barrier
但仍然没有满足demo聚变堆的设计要求。
But to this algorithm , it is important to select initial value and the amount of computation is large ; ( 3 ) an algorithm is presented to estimate the prfs based on stochastic dynamic - linear models . ( 4 ) a new algorithm for selecting detecting threshold based on the wavelet theory is presented to the environment when pulse sequences distribute unevenly in the whole sampling time
该算法的不足是对初始状态的选取非常重要且运算量较大； ( 3 )提出基于动态线性模型利用prf进行重频分选的算法； ( 4 )将小波理论应用到重频分选中,提出了一种新的检测门限，适用于脉冲列分布不均匀的信号环境。