nbu meaning in Chinese

北欧银行雇员联盟联合会

Shocks model leads to nbu - t0 , life distributions
寿命分布及其冲击模型
It is shown that , for the unit operating online with any life distribution , the total life length of the cold standby system is stochastically equal to , stochastically larger than , larger in expectation than and larger in increasing convex order than the total life length of the warm standby one if the standby unit is exponential , nbu , nbue and nbuc distributed , respectively
证明了如果在线工作的元件的寿命分别具有指数分布、 nbu分布、 nbue分布和nbuc分布，则冷储备系统的寿命长度随机等于、随机大于、平均大于和依递增凸序大于热储备系统的寿命长度。