...数据库 -维普资讯 关键词: 飞行成本 时间成本指数 最优飞行轨迹 性能优化[gap=652]Key words: Flight-cost; Time-cost index; Optimization flight trajectory; Performance optimization..
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IT成本：非集成的企业中的不灵活性导致实现新业务需求的时间和成本呈指数上升。
It costs: the inflexibility in the non-integrated enterprise causes an exponential increase in time and cost to implement new business requirements.
生命周期末尾的测试是最糟糕的可测试时间，因为确定缺陷的成本随您找到它的时间成指数级上升。
Testing at the end of the lifecycle is the worst possible time that you could do it because the cost of fixing a defect rises exponentially the longer it takes you to find it.
但在北京和上海，根据中国指数研究院，房地产研究机构表明，他们需要36到42年的时间才能够回到成本。
But in Beijing and Shanghai, they need 36 to 42 years to get the cost back, according to China Index Academy, a real estate research institute.
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