因此，在最高层面上，设备透传就是向一个特定客户操作系统提供一种设备隔离，以便该设备能够被那个客户操作系统独占使用(见图3)。

So, at the highest level, device passthrough is about providing an isolation of devices to a given guest operating system so that the device can be used exclusively by that guest (see Figure 3).

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与成熟的EAI一样，在SOA中关注点隔离是关键，因此soa中的“集成层”可以执行语义和非语义这两类操作，但是必须在架构层面上把它们隔离开。

In SOA, as in mature EAI, separation of concerns is key, and thus an "integration layer" in SOA might perform both semantic and non-semantic actions, but must keep them separate architecturally.

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有些十几岁的孩子不得不在父母双方之间来回旅行，这不论对社会还是在实际操作的层面上都是一个挑战。

Some teens have to travel between parents, and that can create challenges both socially and practically.

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