In this paper, we study the cold redundant repairable system with two indentical components, obtain its existence and uniqueness of a dynamic state nonnegative solution by strongly continuous semigroup of operators theory 摘要用強(qiáng)連續(xù)算子半群理論給出了兩相同部件冷貯備可修系統(tǒng)動(dòng)態(tài)非負(fù)解的存在唯一性證明。