生命: life; vita; vivi-; bio-; -bi ...期: designated time产品生命期: product life cycle平均生命期: life span; lifespan生命期成本: lcc life cycle cost生命期模型: life cycle model生命期望: life expectancy投资生命期: investment life-cycle项目生命期: project life cycle扩展的生命期: extended life cycle全生命期成本: life cycle cost ("lcc")产品生命期成本: product life cycle costing产品生命期与定价: products life & pricing全生命期成本估算: life-cycle costing全生命期成本核算: whole life costing全生命期成本计算: life cycle costing生命期的时间跨度: life cycle time frame生命期阶段间边界: life cycle stage boundaries生命期谱线增宽: lifetime broadening生命期望的丧失: loss of expectation of life寿命;生命期;存在时间: lifetime统一过程的生命期: life cycle unified process; life cycle, unified process项目开发生命期: project development life cycle作用域与生命期: scopes & lifetime生存周期,生存期,生命期软件: lifecycle