The researchers think that they can attach the sensors to cardboard boxes, and then supermarkets can scan the sensors with a portable device to see how ripe the fruit inside is.

研究人员认为，他们可以把传感器安装在纸盒上，然后超市就可以用便携式设备扫描传感器，查看里面的水果的成熟程度。

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Probably everyone with a portable device has once logged on to a public WiFi network without paying for it, while they are having a coffee, on a train, in a shopping mall or at a hotel.

可能每个有移动设备的人在喝咖啡，在火车上，在一个购物中心或酒店时，都曾经登录过不用付费的公共无线网络。

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The portable device easily knocks down.

这种轻便装置容易拆卸。

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When connected to a Bluetooth enabled portable device, streaming and controlling content is a breeze.

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The portable device could offer a rapid early diagnosis in hospital and the community.

BBC: How the hand-held ultrasound scanner works

It would be an even bigger leap from a portable device to a television, Zachary says.

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