该技术隔开了硬件与软件，让许多程序跑在任何机器上，甚至切换这些机器。

This separates software from hardware, allowing many programs to run on any machine, and indeed to switch between them.

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在软件开发这样的复杂任务环境中上下文切换也是个问题。

Context switching in a complex task environment like software development is a major problem.

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然后，软件将视图切换到窄模式。

Then, the software switches the view to narrow mode.

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