色素的作用是“作为一个捕捉光线的天线，”贝尔彻说，“然后能量通过病毒长度传递下来，病毒就像电线一样。”

The role of the pigments is "to act as an antenna to capture the light," Belcher explains, "and then transfer the energy down the length of the virus, like a wire."

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色素的作用是“作为一个捕捉光线的天线，”贝尔彻说，“然后能量通过病毒长度传递下来，病毒就像电线一样。

The role of the pigments is “to act as an antenna to capture the light, ” Belcher explains, “and then transfer the energy down the length of the virus, like a wire.

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这种雏形设备由纳米银颗粒和用在喷墨打印机上的其它材料制成，并与天线和其它组件配合使用，可以从稀薄的空气中获取能量。

That's because the prototype gadget, which works with an antenna and other components, made with nanoparticles of silver and other materials on an inkjet printer, can draw energy out of thin air.

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