动物身上的无线电标签将测量温度变化。

Radio tags on the animals will measure temperature changes.

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但此精密技术可以载到卫星上，而不用加在“无线电标签”的重量上。

But that sophistication can be loaded onto the satellite, where it does not contribute to the weight of a tag.

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这段Youtube视频演示了一种装有rfid(无线射频识别)标签的冰箱，当你需要购买牛奶的时候，它可以自动通知你。

This video shows a prototype of a fridge that USES RFID tags to automatically notify you when milk needs to be bought.

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