That energy could be put to work, charging a cellphone, say, or a medicalsensor in the body.
能量可以用来做些工作,譬如给手机充电,或者驱动身体里的医疗传感器等等。
2
Their low-power Wi-Fi chips can be embedded into any system including consumer electronics, smart energy devices, home and building controls, portable medical sensors, and sensor networks.