设计这个标签的刘易斯盖若德说，他们能够利用手机网络查明一个物体在城市内100米，农村半英里的范围内。

Lewis Girod, who designed the tags, says they can use the mobile phone network to pinpoint an object to within 100 metres or so in the city, and around half a mile in the country.

youdao

设计这个标签的刘易斯盖若德说，他们能够利用手机网络查明一个物体在城市内100米，农村半英里的范围内。

Lewis Girod, who designed the tags, says they can use the mobile phone network to pinpoint an object to within 100 metres or so in the city, and around half a mile in the country.

youdao