过去几年里许多不同的技术层出不穷，大部分是同过皮肤上的电极从外部对肌肉施加微小的电震动，使肌肉收缩。

Many different techniques have emerged over the years, most of which involve applying small jolts of electricity externally to muscles, via electrodes on the skin, to make them contract.

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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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雷神bbn技术公司的网络软件技术运行在Cobham公司研发的无线电硬件上。

Raytheon BBN Technology network software operates in concert with radio hardware developed by COBHAM.

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