Perhaps, but it could also be used in smart electronic tags that track merchandise and large flat-panel displays.

也许，不过，它还可用于跟踪货物的智能电子标牌，以及大型平板显示器。

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Above, the flat roof is used as a playground and features a running track.

顶部设计了屋顶平台，用作操场并设有跑道。

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The track of Beijing Marathon is flat, scientific and balanced and provides very favorable condition for athletes to make good performance.

北京马拉松整个赛道路面平坦，科学均衡，非常有利于参赛者创造佳绩。

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To make his guitar, Les Paul attached guitar strings and two electronic pickup devices onto a flat piece of wood from a railroad track.

VOA: special.2009.09.27

The Adelaide annihilation came on a flat track holding no terrors.

BBC: Indian cricket's end of an era

The outlook for the further spread of flat-rate taxation is as mixed as its track record.

ECONOMIST: Will more of eastern Europe adopt flat-rate tax regimes?

At the touch of a button, the bends of the athletics track can be lowered to create a larger flat arena for other sports use.

BBC: Glasgow Commonwealth Games venue opens to the public