A light tap on a smooth surface or the proximity of a hand replaces physical actuation of a mechanical switch.

在光滑表面上轻轻一触，或者用手靠近一下，就能代替机械开关的物理传动。

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But the switch may not be smooth.

但这种转换不会是一帆风顺的。

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But the switch may not be smooth.

但这种转变并不会一帆风顺。

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It's a tricky balancing act to pull off, and lots could go wrong -- for instance, it's not exactly clear how smooth it will be to switch between the two types of Windows, or if you'll even be able to get the old Windows on certain types of tablets (that is, tablets that run the power-efficient ARM processors used by the iPad and most other tablets today).

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