Capabilities that cannot be achieved in a public cloud: you might require a very specific vendor technology, or you might need availability guarantees not achievable by public cloud usage.

提供了无法通过公共云实现的功能：您可能需要一种非常特定的供应商技术，或者可能需要可用性保证，而使用公共云无法满足这一点。

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The whole process can be achieved within a few minutes, thereby enabling simple high availability.

整个过程可以在几分钟内完成，因此可以简便地提高可用性。

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This is called failover — the mechanism by which high availability is achieved.

这叫做故障转移(failover)——这是实现高可用性的机制。

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In a briefing paper published earlier this year, the WHO said the scheme had achieved a 40% reduction in drug prices and significantly improved the availability of essential drugs.

BBC: India's cheap drug scheme hailed