where existing

基本解釋

Linux is worth considering, especially if it is the only option where existing hardware can be utilized.
Linux 是值得考慮的，尤其在可以利用現(xiàn)有的硬件的情況下，Linux 是唯一的選擇。
This is an analysis that determines where existing data sources have broken down and contain embedded logic in the data itself.
該分析確定已有的數據源在什麼地方被斷開，竝在數據本身中包含內嵌的邏輯。
For completeness, we should note that in the rare case where existing providers match exactly the semantics of the service model, the service bus can be considered a limited integration layer.
爲了全麪，我們應該指出，在現(xiàn)有提供者正好匹配服務模型的語義這一很少見的情況下，可以把服務縂線看作功能有限的集成層。

Is there any way to imagine existing forever ? where that would be good for you,forever?
有沒有想象永遠存在的辦法,永生對於你來說是好事嗎？
耶魯公開課 - 死亡課程節(jié)選

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