他们维持她的生命直到救护车最终到达。

They kept her alive until the ambulance finally arrived.

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操作——在服务的生命期内管理服务，直到服务最终修订或退役。

Operation When the service is managed through the rest of its lifetime until it is eventually re-versioned or retired.

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所谓产品生命周期，是指产品从进入市场开始，直到最终退出市场为止所经历的市场生命循环过程。

The product life cycle, refers to products from entering the market, the market life cycle until the final out of the market so far have been through.

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