期望费用 meaning in English

expect cost

2 based on dynamic programming techniques , using three different criterions ( maximum probability of hit criterion , maximum expected no . of penetrators criterion , and minimum expected cost criterion ) , the author investigates optimal allocation of tactical missiles between a ( several ) primary target ( s ) and several secondary targets under the condition that the primary target ( s ) is defended by the secondary targets ( only " normal " defensive mode can be used by the defender ) . the optimal allocation policies of tactical missiles between the primary target ( s ) and the secondary targets are given
2基于动态规划理论，采用三个不同的准则(最大命中概率准则、最大期望突防数量准则以及最小期望费用准则) ，研究了一个和多个主要目标在多个次要目标防卫下(次要目标采用“常规”防守模式) ，战术导弹对这两类目标打击的优化分配问题，给出了导弹对目标打击的最优分配策略。