Their actual use may turn out to be to provide power for portable electronic devices.
但它的实际用途可能是为便携式电子设备提供能源。
They might generate energy to power small electronic devices or charge a cell phone.
他们可能会产生能量，以小功率电子设备或手机充电。
Turn off power strips and electronic devices when not in use.
电插板和电器不用时，务必关掉电源。
Turn off power strips and electronic devices when not in use.
电插板和电器不用时，务必关掉电源。
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